Unit 2 Test Review

Which of the following are examples of like terms?

• 2 and 2x
• y³ and x³
• y and x
• -3x and 3x

Tags

CCSS.6.EE.A.2B

Add to Simplify:

(- 2x³ + 4x) + (5x³ - 4x + 5)

• 3x³ + 5

• 3x³ + 8x + 5

• 3x² + 5

• 7x³ + 8x + 5

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

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

Simplify each expression.

(- b⁴ + 6b³ + 6) - (- 6b⁴ + 8b³ + 2)

• 4b⁴ - 2b³ + 7

• 5b⁴ - 2b³ + 4

• b⁴ - 2b³ + 7

• 5b⁴ - 2b³ + 7

(x + 3)(x + 7)

• x² + 10x + 21
• x² + 21
• x² + 4x + 21
• x² − 10x + 21

Tags

CCSS.HSA.APR.A.1

Simplify

(45x⁶y⁹) / (5x⁴y²)

• (9x²)/y⁷

• 40x²y⁷

• 9x²y⁷

• 9x¹⁰y¹¹

(2x − 3)²

• 4x² - 9

• 4x² − 12x + 9

• 4x² + 9

• 4x² + 6x − 9

Combine like terms to simplify:
 (5x + 2) + (4x + 5)

• 9x -7
• -9x-11
• 9x+7
• x+7

Tags

CCSS.7.EE.A.1

-5x⁶(3x² - 12x + 30)

• -15x⁸ + 60x⁷ - 150x⁶

• 15x⁸ - 60x⁷ - 150x⁶

• 8x⁶ - 17x + 35

• -8x⁶ + 17x - 35x²

Simplify each expression.

(4n⁴ - 8n + 4) - (4n⁴ + 8n² + 1)

• -8n² - 8n + 3

• -7n² - 8n + 3

• -6n² - 8n + 3

• -7n² - 4n + 3