Math worksheet featuring six polynomial division problems using long division format.
Printable math worksheet titled Dividing Polynomials containing six long division problems with variables z, h, b, k, and y.
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Step-by-step solution for: Algebra 1 Worksheets | Monomials and Polynomials Worksheets | Long ...
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Show Answer Key & Explanations
Step-by-step solution for: Algebra 1 Worksheets | Monomials and Polynomials Worksheets | Long ...
Let's solve each polynomial division problem step by step using long division. We'll divide each polynomial and express any remainder as a fraction.
---
$$
\frac{z^2 - 19z - 11}{z + 8}
$$
We perform polynomial long division:
1. Divide $ z^2 \div z = z $
2. Multiply: $ z(z + 8) = z^2 + 8z $
3. Subtract: $ (z^2 - 19z) - (z^2 + 8z) = -27z $
4. Bring down $-11$: $ -27z - 11 $
5. Divide $ -27z \div z = -27 $
6. Multiply: $ -27(z + 8) = -27z - 216 $
7. Subtract: $ (-27z - 11) - (-27z - 216) = 205 $
So, the result is:
$$
z - 27 + \frac{205}{z + 8}
$$
✔ Answer: $ z - 27 + \frac{205}{z + 8} $
---
$$
\frac{-3h^2 + 15}{h - 5}
$$
Note: The dividend is $ -3h^2 + 0h + 15 $. Let's divide:
1. $ -3h^2 \div h = -3h $
2. Multiply: $ -3h(h - 5) = -3h^2 + 15h $
3. Subtract: $ (-3h^2 + 0h) - (-3h^2 + 15h) = -15h $
4. Bring down $+15$: $ -15h + 15 $
5. $ -15h \div h = -15 $
6. Multiply: $ -15(h - 5) = -15h + 75 $
7. Subtract: $ (-15h + 15) - (-15h + 75) = -60 $
So, the result is:
$$
-3h - 15 + \frac{-60}{h - 5} = -3h - 15 - \frac{60}{h - 5}
$$
✔ Answer: $ -3h - 15 - \frac{60}{h - 5} $
---
$$
\frac{2h^3 + 13h^2 - 14h + 4}{h + 3}
$$
1. $ 2h^3 \div h = 2h^2 $
2. Multiply: $ 2h^2(h + 3) = 2h^3 + 6h^2 $
3. Subtract: $ (2h^3 + 13h^2) - (2h^3 + 6h^2) = 7h^2 $
4. Bring down $-14h$: $ 7h^2 - 14h $
5. $ 7h^2 \div h = 7h $
6. Multiply: $ 7h(h + 3) = 7h^2 + 21h $
7. Subtract: $ (7h^2 - 14h) - (7h^2 + 21h) = -35h $
8. Bring down $+4$: $ -35h + 4 $
9. $ -35h \div h = -35 $
10. Multiply: $ -35(h + 3) = -35h - 105 $
11. Subtract: $ (-35h + 4) - (-35h - 105) = 109 $
So, the result is:
$$
2h^2 + 7h - 35 + \frac{109}{h + 3}
$$
✔ Answer: $ 2h^2 + 7h - 35 + \frac{109}{h + 3} $
---
$$
\frac{-b^3 + 16b^2 - 13b + 5}{b + 4}
$$
1. $ -b^3 \div b = -b^2 $
2. Multiply: $ -b^2(b + 4) = -b^3 - 4b^2 $
3. Subtract: $ (-b^3 + 16b^2) - (-b^3 - 4b^2) = 20b^2 $
4. Bring down $-13b$: $ 20b^2 - 13b $
5. $ 20b^2 \div b = 20b $
6. Multiply: $ 20b(b + 4) = 20b^2 + 80b $
7. Subtract: $ (20b^2 - 13b) - (20b^2 + 80b) = -93b $
8. Bring down $+5$: $ -93b + 5 $
9. $ -93b \div b = -93 $
10. Multiply: $ -93(b + 4) = -93b - 372 $
11. Subtract: $ (-93b + 5) - (-93b - 372) = 377 $
So, the result is:
$$
-b^2 + 20b - 93 + \frac{377}{b + 4}
$$
✔ Answer: $ -b^2 + 20b - 93 + \frac{377}{b + 4} $
---
$$
\frac{3k^2 + 10k - 9}{k - 9}
$$
1. $ 3k^2 \div k = 3k $
2. Multiply: $ 3k(k - 9) = 3k^2 - 27k $
3. Subtract: $ (3k^2 + 10k) - (3k^2 - 27k) = 37k $
4. Bring down $-9$: $ 37k - 9 $
5. $ 37k \div k = 37 $
6. Multiply: $ 37(k - 9) = 37k - 333 $
7. Subtract: $ (37k - 9) - (37k - 333) = 324 $
So, the result is:
$$
3k + 37 + \frac{324}{k - 9}
$$
✔ Answer: $ 3k + 37 + \frac{324}{k - 9} $
---
$$
\frac{-3y^2 + 6}{y - 4}
$$
Note: $ -3y^2 + 0y + 6 $
1. $ -3y^2 \div y = -3y $
2. Multiply: $ -3y(y - 4) = -3y^2 + 12y $
3. Subtract: $ (-3y^2 + 0y) - (-3y^2 + 12y) = -12y $
4. Bring down $+6$: $ -12y + 6 $
5. $ -12y \div y = -12 $
6. Multiply: $ -12(y - 4) = -12y + 48 $
7. Subtract: $ (-12y + 6) - (-12y + 48) = -42 $
So, the result is:
$$
-3y - 12 + \frac{-42}{y - 4} = -3y - 12 - \frac{42}{y - 4}
$$
✔ Answer: $ -3y - 12 - \frac{42}{y - 4} $
---
1) $ z - 27 + \frac{205}{z + 8} $
2) $ -3h - 15 - \frac{60}{h - 5} $
3) $ 2h^2 + 7h - 35 + \frac{109}{h + 3} $
4) $ -b^2 + 20b - 93 + \frac{377}{b + 4} $
5) $ 3k + 37 + \frac{324}{k - 9} $
6) $ -3y - 12 - \frac{42}{y - 4} $
Let me know if you'd like these checked with synthetic division or substitution!
---
1) Divide:
$$
\frac{z^2 - 19z - 11}{z + 8}
$$
We perform polynomial long division:
1. Divide $ z^2 \div z = z $
2. Multiply: $ z(z + 8) = z^2 + 8z $
3. Subtract: $ (z^2 - 19z) - (z^2 + 8z) = -27z $
4. Bring down $-11$: $ -27z - 11 $
5. Divide $ -27z \div z = -27 $
6. Multiply: $ -27(z + 8) = -27z - 216 $
7. Subtract: $ (-27z - 11) - (-27z - 216) = 205 $
So, the result is:
$$
z - 27 + \frac{205}{z + 8}
$$
✔ Answer: $ z - 27 + \frac{205}{z + 8} $
---
2) Divide:
$$
\frac{-3h^2 + 15}{h - 5}
$$
Note: The dividend is $ -3h^2 + 0h + 15 $. Let's divide:
1. $ -3h^2 \div h = -3h $
2. Multiply: $ -3h(h - 5) = -3h^2 + 15h $
3. Subtract: $ (-3h^2 + 0h) - (-3h^2 + 15h) = -15h $
4. Bring down $+15$: $ -15h + 15 $
5. $ -15h \div h = -15 $
6. Multiply: $ -15(h - 5) = -15h + 75 $
7. Subtract: $ (-15h + 15) - (-15h + 75) = -60 $
So, the result is:
$$
-3h - 15 + \frac{-60}{h - 5} = -3h - 15 - \frac{60}{h - 5}
$$
✔ Answer: $ -3h - 15 - \frac{60}{h - 5} $
---
3) Divide:
$$
\frac{2h^3 + 13h^2 - 14h + 4}{h + 3}
$$
1. $ 2h^3 \div h = 2h^2 $
2. Multiply: $ 2h^2(h + 3) = 2h^3 + 6h^2 $
3. Subtract: $ (2h^3 + 13h^2) - (2h^3 + 6h^2) = 7h^2 $
4. Bring down $-14h$: $ 7h^2 - 14h $
5. $ 7h^2 \div h = 7h $
6. Multiply: $ 7h(h + 3) = 7h^2 + 21h $
7. Subtract: $ (7h^2 - 14h) - (7h^2 + 21h) = -35h $
8. Bring down $+4$: $ -35h + 4 $
9. $ -35h \div h = -35 $
10. Multiply: $ -35(h + 3) = -35h - 105 $
11. Subtract: $ (-35h + 4) - (-35h - 105) = 109 $
So, the result is:
$$
2h^2 + 7h - 35 + \frac{109}{h + 3}
$$
✔ Answer: $ 2h^2 + 7h - 35 + \frac{109}{h + 3} $
---
4) Divide:
$$
\frac{-b^3 + 16b^2 - 13b + 5}{b + 4}
$$
1. $ -b^3 \div b = -b^2 $
2. Multiply: $ -b^2(b + 4) = -b^3 - 4b^2 $
3. Subtract: $ (-b^3 + 16b^2) - (-b^3 - 4b^2) = 20b^2 $
4. Bring down $-13b$: $ 20b^2 - 13b $
5. $ 20b^2 \div b = 20b $
6. Multiply: $ 20b(b + 4) = 20b^2 + 80b $
7. Subtract: $ (20b^2 - 13b) - (20b^2 + 80b) = -93b $
8. Bring down $+5$: $ -93b + 5 $
9. $ -93b \div b = -93 $
10. Multiply: $ -93(b + 4) = -93b - 372 $
11. Subtract: $ (-93b + 5) - (-93b - 372) = 377 $
So, the result is:
$$
-b^2 + 20b - 93 + \frac{377}{b + 4}
$$
✔ Answer: $ -b^2 + 20b - 93 + \frac{377}{b + 4} $
---
5) Divide:
$$
\frac{3k^2 + 10k - 9}{k - 9}
$$
1. $ 3k^2 \div k = 3k $
2. Multiply: $ 3k(k - 9) = 3k^2 - 27k $
3. Subtract: $ (3k^2 + 10k) - (3k^2 - 27k) = 37k $
4. Bring down $-9$: $ 37k - 9 $
5. $ 37k \div k = 37 $
6. Multiply: $ 37(k - 9) = 37k - 333 $
7. Subtract: $ (37k - 9) - (37k - 333) = 324 $
So, the result is:
$$
3k + 37 + \frac{324}{k - 9}
$$
✔ Answer: $ 3k + 37 + \frac{324}{k - 9} $
---
6) Divide:
$$
\frac{-3y^2 + 6}{y - 4}
$$
Note: $ -3y^2 + 0y + 6 $
1. $ -3y^2 \div y = -3y $
2. Multiply: $ -3y(y - 4) = -3y^2 + 12y $
3. Subtract: $ (-3y^2 + 0y) - (-3y^2 + 12y) = -12y $
4. Bring down $+6$: $ -12y + 6 $
5. $ -12y \div y = -12 $
6. Multiply: $ -12(y - 4) = -12y + 48 $
7. Subtract: $ (-12y + 6) - (-12y + 48) = -42 $
So, the result is:
$$
-3y - 12 + \frac{-42}{y - 4} = -3y - 12 - \frac{42}{y - 4}
$$
✔ Answer: $ -3y - 12 - \frac{42}{y - 4} $
---
✔ Final Answers:
1) $ z - 27 + \frac{205}{z + 8} $
2) $ -3h - 15 - \frac{60}{h - 5} $
3) $ 2h^2 + 7h - 35 + \frac{109}{h + 3} $
4) $ -b^2 + 20b - 93 + \frac{377}{b + 4} $
5) $ 3k + 37 + \frac{324}{k - 9} $
6) $ -3y - 12 - \frac{42}{y - 4} $
Let me know if you'd like these checked with synthetic division or substitution!
Parent Tip: Review the logic above to help your child master the concept of long division of polynomials worksheet.