Multiply Monomials and Polynomials

Multiply -7x(3x² + 4x + 1)

• -10x³ + 11x - 7

• -21x³ - 28x² - 7x

2n⁴ * 5n⁴

• 7n⁴

• 10n¹⁶

• 10n⁸

• none of the above

Simplify
x³⋅x⁶

• x⁹

• x¹⁸

• x¹

• x²

6k² * k

• 6

• 6k

• 6k²

• 6k³

• -35y⁶
• -35y⁵
• -2y⁶
• -2y⁵

(2x²)(5x)

• 7x²

• 7x³

• 10x²

• 10x³

Simplify the expression.
-3x²( 7x² - x + 4)

• -21x⁴ + 3x³ -12x²

• 7x² - x + 4 (-3x²)

• 21x⁴ + 3x³ + 12x²

• -12x² + 3x³ -21x⁴

5x(4x³ + 8)

• 9x⁴ + 40x

• 20x⁴ + 40x

4m(3m⁷ + 2m⁵)

• 7m⁷ + 6m⁶

• 12m⁸ + 8m⁶

-8x(x - 8)

• -8x² + 64x

• -8x² - 64