Unit Review Polynomials

Simplify the expression.

-3x²( 7x² - x + 4)

• -21x⁴ + 3x³ -12x²

• 7x² - x + 4 (-3x²)

• 21x⁴ + 3x³ + 12x²

• -12x² + 3x³ -21x⁴

Simplify:

• 5x² + ½ x⁴y² 
• 5x² + 2x⁴y² - 1
• 5x² + ½ x⁴y² - 1
• 10x³y² + x⁵y⁴

Subtract the following polynomials:
(3x²-3x+2)-(x²-2x+1)

• 2x²+x+1
• 2x²-5x+3
• 2x²-x+1
• 4x²-5x+3

Add the following polynomials
(x³-6x²+3)+(3x³+4x-1)

• 4x³-2x²+2
• 4x³-6x²+4x+2
• -2x³+2x+2
• 4x³-2x²-2

(4a + 2)(6a² − a + 2)

• 24a³ + 16a² + 6a + 4
• 24a³ + 8a² + 10a + 4
• 24a³ + 8a² + 6a + 4
• 24a³ - 8a² - 6a + 4