Review: Factoring for Test

3x(x+1) + 4(x+1)

• 12x(4x+1)

• (3x+4)(x+1)

• 3x²+7x+2

• 7x+x+1

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSA.APR.A.1

Factor 2x(5x - 3) - (5x - 3)

• (2x - 1)(5x - 3)

• (2x)(10x - 6)

• 2x(25x² - 9)

• (5x-3)² (2x)

Tags

CCSS.7.EE.A.1

6xy - 8x + 15y - 20

• (3y + 4)(2x - 5)
• (3y - 4)(2x + 5)
• (2y - 4)(3x + 5)
• (2y + 5)(2y - 4)

What do you do to the b value to correctly complete the square?

• square it
• divide it by 2 and square the result
• divide it by 2 and take the square root of the result
• divide it by 2 only

Tags

CCSS.HSA-REI.B.4B

To solve by completing the square, what needs to be moved in this equation?
x² = 9 - 4x

• the -4x
• the 9
• the x²

Tags

CCSS.HSA-REI.B.4B

What is the first step to solving THIS equation by completing the square?
a² + 10a + 21 = 0

• Set the equation equal to zero
• Divide 10 by 2 and add the result to both sides
• Add a² and 10a together
• Subtract the 21

Tags

CCSS.HSA-REI.B.4B

When factoring
x² - 4x + 4 = 20,
what goes in the blank?
(x - __ )² = 20

• 4
• 2
• 8
• 20

Tags

CCSS.HSA-REI.B.4B

What is one of the solutions to this equation?
(2x - 1)² = 49

• 7
• -7
• -4
• -3

Tags

CCSS.8.EE.A.2

Solve by completing the square.
y² + 10y = -9

• 1 and -12
• -1 and -9
• 1 and -9
• 1 and -1

Tags

CCSS.HSA-REI.B.4B

2x²+8x−14 = 0

• -2±√11
• 2±√11
• 2±√30
• -2±√30

Tags

CCSS.HSA.REI.B.4