Multiplying Polynomials Checkpoint

Match the following expression so that they are equivalent

• 10x(3x+1)

• 2x(2x+3)

• 2x(3x-3)

• -3x(x-1)

• -4x(3x+1)

• -2x(2x+3)

• -2x(2x-3)

• 2(2x-3)

• 2(2x+3)

Which expression is equivalent to -36x² + 12x?

• -12x(3x - 1)

• -12x(3x + 1)

• 12x(3x - 1)

• 12x(3x + 1)

Which expression is equivalent

(x² + 7x - 5)(-3x + 8)?

• 3x³ + 13x² - 71x + 40

• 3x³ - 29x² + 41x - 40

• -3x³ - 13x² + 71x - 40

• -3x³ + 29x² - 41x - 40

Which expression is equivalent to (12x⁰y⁴z⁵)(3x⁵y⁴z⁷) for all values of x, y, and z where the expression is defined?

• 13x⁵y⁸z¹²

• 13x⁰y¹⁶z³⁵

• 36x⁵y⁸z¹²

• 36x⁰y¹⁶z³⁵

If the length of a rectangle is 10a³b⁴ yards and the width of a rectangle is 4a⁵b¹⁰, which expression represents the area of the rectangle in yards?

• 14a¹⁵b⁴⁰

• 14a⁸b¹⁴

• 40a⁸b¹⁴

• 40a¹⁵b⁴⁰

If the length of a rectangle is 5x²y⁴ yards and the width of a rectangle is 3x⁹y⁷, which expression represents the area of the rectangle in yards?

(5x+1)(x+4)

• 5x² + 19x − 4
• 5x² + 21x + 4
• 5x² + 4
• 5x² − 19x − 4

(3x − 6)(7x + 7)

• 21x² − 63x + 42
• 21x² − 21x − 42
• 21x² − 42
• 21x² + 63x + 42