Solving Quadratics by Factoring and Taking the Square Root

Find the value of c that makes x² + 16x + c a perfect square.

• -64

• 64

• 8

• 16

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.

a² + 2a - 24 = 0

• a = -6, 4

• a = 6, -4

• a = 12, -2

• a = 8, -3

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.

2x² + 17x + 21 = 0

• x= ^-21/₂, -17

• x= ²/₃, 16

• x=-7, ^-3/₂

• x=15, -³/₇

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.

4x²+16x+15=0

• -5/2,-3/2

• (2x+5)(2x+3)

• -10,-6

• 5/2, 3/2

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96

Tags

CCSS.HSA-REI.B.4B

Solve using square roots.

3x² - 192 = 0

• -32 or 32

• No Solution

• -8 or 8

• -64 or 64

Tags

CCSS.8.EE.A.2

How many solutions does this function have?

• two

• one

• all real numbers

• no real solutions

How many solutions does this function have?

• two

• one

• all real numbers

• no real solutions

What are the solutions to this function?

• x={-2,-1}

• x={-3,-1}

• x={-1,3}

• x={-1,-2}

What are the roots?
2x² + 2x - 12 = 0

• x = 3 ; x = -3

• x = 12 ; x =  -12

• x = -3 ; x = 2

• x = -2 ; x = 2

Tags

CCSS.HSA-REI.B.4B