Applications of Polynomial Multiplication

Simplify:
2x ( -2x -3)

• -4x - 3
• x² - 3
• -4x² - 6x
• -4x - 6

Which expression is equivalent to (x + 7)(x + 9)?

• x² + 63x + 16
• x² + 16x + 63
• x² + 79
• x² + 16x + 2

Which expression is equivalent to (2x - 1)(x + 2)?

• 2x² + 3x - 2
• 2x² - 5x - 2
• 2x² + 3x + 2
• 2x² - 5x + 2

Which expression is equivalent to (5x+2)(x²-3x+6)?

• 5x³ - 17x² +24x +12
• 5x³ + 17x² - 24x +12
• 5x³ - 13x² + 24x +12
• 5x³ +13x² - 24x - 12

Simplify:
3x( -6x³ -2x² + x) - 3x²( x² - 3x + 5)

• -21x⁴ + 3x³ -12x²
• 7x² - x + 4 (-3x²)
• 21x⁴ + 3x³ + 12x²
• -12x² + 3x³ -21x⁴

Which expression is equivalent to 3a(5a² + 8a + 2)?

• 15a³ + 24a² + 6a
• 10a³ + 24a + 6

Which expression is equivalent to 5x(4x³ + 8)?

• 9x⁴ + 40x
• 20x⁴ + 40x

Which expression is equivalent to 7y(5y² + 2y + 3)?

• 35y³ + 14y² + 21y
• 12y³ + 14y² + 21y

Which expression is equivalent to -6x(x² - 7x)?

• -6x³ + 42x²
• -6x³ - 42x²

Simplify:  2a(6a²⁾

• 12a³
• 12a
• 2a²
• 6a³