Unit 4 Review

Find the sum.
(2x² + 5x - 7) + ( 3 - 4x² + 6x)

• 2x² + 3x +1
• -2x² - 11x -4
• 2x² + 5x -7
• -2x² + 11x -4

Tags

CCSS.HSA.APR.A.1

Simplify the expression.
(4n⁴ - 8n + 4) - (8n² + 4n⁴ + 1)

• -8n² - 8n + 3 
• -7n² - 8n + 3 
• -6n² - 8n + 3
• -7n² - 4n + 3

Tags

CCSS.HSA.APR.A.1

Simplify:
-3x²( 7x² - x + 4)

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

Tags

CCSS.HSA.APR.A.1

3a(5a² + 8a + 2)

• 15a³ + 24a² + 6a
• 10a³ + 24a + 6

Tags

CCSS.HSA.APR.A.1

Simplify the expression to determine the value of B.

9x -2(x - 5) + 10x = Bx + C

• 17

• 10

• 21

Tags

CCSS.7.EE.A.1

If an equilateral triangle has a side of (2x - 8), what is the perimeter?

• 4x² - 32 + 64

• 4x - 16

• 6x - 24

Tags

CCSS.3.MD.D.8

(x + 7)(3x - 1)

• 4x + 6

• 3x² + 20x - 7

• 3x² + 23x - 7

Tags

CCSS.HSA.APR.A.1

Simplify (x + 6)²

• 2x + 12

• 2x + 36

• x² + 36

• x² + 12x + 36

Tags

CCSS.HSA.APR.C.4

Which of the following is a difference of perfect squares?

• x² - 18
• 4x² + 36 
• 9x² - 100
• x² + 4

Tags

CCSS.HSA.APR.C.4

A rectangle has an area of 2x² – 19x +45 ft². What are the dimensions of the rectangle?  

• (2x - 9)(x - 5)
• (2x + 9)(x + 5)
• (2x - 5)(x - 9)
• (2x - 5)(x + 9)