12/14- Multiplying Polynomials Homework

Multiply

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5x( 4x³ + 8 )

• 9x⁴ + 40x

• 20x⁴ + 40x

• 9x⁴ + 40

• 20x⁴ + 40

x( x + 4 )

• 2x + 4

• x² + 4x

• x² + 4

Simplify:

3a( 5a² + 8a + 2 )

• 15a³ + 24a² + 6a

• 10a³ + 24a + 6

• 8a³ + 11a² + 6a

• 15a² + 24a + 6

Simplify 3( - 3x² + 2x + 7 )

• -9x² + 6x + 21

• 32x² + 8x - 20

• -24x⁴ + 6x³ - 42x²

• -64x² + 16x - 48

Find the area of a rectangle with length (2x - 5) and width (3x) .

Hint: Area = Length X Width

• 6x²-15x

• 6x²+15x

• 5x-15x