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Algebra worksheet for practicing multiplication of polynomials and monomials.

Worksheet titled "Multiplying a Polynomial and a Monomial" with 22 algebra problems involving multiplication of polynomials and monomials, including a QR code in the top right corner.

Worksheet titled "Multiplying a Polynomial and a Monomial" with 22 algebra problems involving multiplication of polynomials and monomials, including a QR code in the top right corner.

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Show Answer Key & Explanations Step-by-step solution for: Multiplying a Polynomial and a Monomial worksheets
Here are the solutions for each problem. To solve these, you multiply the term outside the parentheses by every term inside the parentheses.

1) $13(x + 3) = 13x + 39$
2) $20x(x - 4y) = 20x^2 - 80xy$
3) $14(x + 2) = 14x + 28$
4) $16(x + 4) = 16x + 64$
5) $18x(x - 2y) = 18x^2 - 36xy$
6) $8x(x - 4y) = 8x^2 - 32xy$
7) $-12x(x + 3) = -12x^2 - 36x$
8) $10x(x - 3y) = 10x^2 - 30xy$
9) $-7x(x + 4) = -7x^2 - 28x$
10) $15x(x - 2y) = 15x^2 - 30xy$
11) $16x(x - 3y + 8) = 16x^2 - 48xy + 128x$
12) $11(x + 3) = 11x + 33$
13) $9x(x - 2y + 5) = 9x^2 - 18xy + 45x$
14) $-4x(x + 4) = -4x^2 - 16x$
15) $13x(x - 2y + 7) = 13x^2 - 26xy + 91x$
16) $21(x + 3) = 21x + 63$
17) $-10x(x + 4) = -10x^2 - 40x$
18) $14x(x - 3y) = 14x^2 - 42xy$
19) $7x(x - 4y) = 7x^2 - 28xy$
20) $-11x(x + 4) = -11x^2 - 44x$
21) $-15x(x + 4) = -15x^2 - 60x$
22) $17x(x - 4y) = 17x^2 - 68xy$

Final Answer:
1) 13x + 39
2) 20x² - 80xy
3) 14x + 28
4) 16x + 64
5) 18x² - 36xy
6) 8x² - 32xy
7) -12x² - 36x
8) 10x² - 30xy
9) -7x² - 28x
10) 15x² - 30xy
11) 16x² - 48xy + 128x
12) 11x + 33
13) 9x² - 18xy + 45x
14) -4x² - 16x
15) 13x² - 26xy + 91x
16) 21x + 63
17) -10x² - 40x
18) 14x² - 42xy
19) 7x² - 28xy
20) -11x² - 44x
21) -15x² - 60x
22) 17x² - 68xy
Parent Tip: Review the logic above to help your child master the concept of multiplying polynomials by monomials worksheet.
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