Solving Quadratics by Factoring and Square Roots

Solve

2x² +11= -9

• ±3i

• ±i√10

• √10

• ±2i√5

Tags

CCSS.HSA.REI.B.4

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

 x² - 81 = 0

• x = 11, -11
• x =±9
• x = 7, -7
• x=±9i

Tags

CCSS.HSA-REI.B.4B

-3x² = 99

• i√99
• ±√33
• ±i√33
• -√33

Tags

CCSS.8.EE.A.2

x² + 7 = 6

• -1
• 1
• ±1
• ±i

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.A.1

x² +4 = -77

• 9
• -9i
• ±9i
• ±9

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve
(x-5)² = 25

• ±i0
• ±10
• 10, 0
• -10, 0

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.A.1

Factor:
x² + 5x - 24

• (x - 8)(x + 3)
• (x + 8)(x - 3)
• (x + 6)(x - 4)
• (x + 12)(x - 2)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor:
x² + 10x + 24

• (x + 8)(x + 3)
• (x + 6)(x + 4)
• (x + 12)(x - 2)
• (x + 12)(x + 2)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.APR.B.2

CCSS.HSA.APR.B.3

Factor: x² + 2x – 3

• (x - 2)(x + 1)
• (x + 1)(x - 3)
• (x + 2)(x - 1)
• (x - 1)(x + 3)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve for the values of x:

(x + 2)(x - 3) = 0

• x= 2, x= 3

• x= -2, x= -3

• x= 2, x= 3

• x= -2, x= 3

Tags

CCSS.HSA.REI.B.4