1. -x - 8 + 7(4 + 3x) = -x - 8 + 28 + 21x = 20x + 20
2. -4n(-2n - 3) - 2n(1 + 2n) = 8n² + 12n - 2n - 4n² = 4n² + 10n
3. 5(5x + 7) + 3(x + 3) = 25x + 35 + 3x + 9 = 28x + 44
4. 3(n - 2) - 8n(5n - 2) = 3n - 6 - 40n² + 16n = -40n² + 19n - 6
5. 2x(3x - 3) + 7(1 + 6x) = 6x² - 6x + 7 + 42x = 6x² + 36x + 7
6. -(-8n - 5) + 3n(n - 7) = 8n + 5 + 3n² - 21n = 3n² - 13n + 5
7. 6(6x + 5) + 8x(x - 5) = 36x + 30 + 8x² - 40x = 8x² - 4x + 30
8. -2(7n + 3) + 7(n + 1) = -14n - 6 + 7n + 7 = -7n + 1
9. 7x(-8x + 1) + 4(-2x - 3) = -56x² + 7x - 8x - 12 = -56x² - x - 12
10. -3(x + 8) + 2(-4x + 3) = -3x - 24 - 8x + 6 = -11x - 18
Parent Tip: Review the logic above to help your child master the concept of simplify numerical expressions worksheet.