solving quadratics

Solve

4x² - 100 = 0

• x = 25, -25

• x = 96

• x = 5, -5

• x = -96

Solve
a² + 2a - 24 = 0

• a = -6, 4
• a = 6, -4
• a = 12, -2
• a = 8, -3

Tags

CCSS.HSA-REI.B.4B

Solve

5x² - 4 = 41

• x = 9, x = -9

• x = 3, x = -3

• x = 8, x = -8

• no solution

What are the solutions?

• -2, 1
• 1, 2
• -1,2
• 0,-4

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

CCSS.HSA.REI.C.7

CCSS.HSA.REI.D.11

What are the zeros?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Tags

CCSS.HSF-IF.C.7A

What are the solutions?

• x = 4, -1

• (-4, 1)

• x = -4, 1

• (4, 0) (-1, 0)

• 1.5, - 1.5

• 1.5

• -1, 1

• No real solution

Tags

CCSS.HSA-REI.B.4B

Solve

x² - 9x + 20 = 0

• x = -4 and x = -5

• x = 20 and x = -9

• x = 4 and x = 5

• x = -4 and x = 5

Solve

x² + 3x - 18 = 0

• x = -3 and x = 6

• x = 3 and x = -6

• x = -9 and x = 2

• x = 9 and x = -2

Solve

 $x^2+2x-24=0$  

• x = -6 and x = 4

• x = 6 and x = -4

• x = 12 and x = -2

• x = 8 and x = -3