Solving by Factoring and Square Roots

Solve x² = 121

• x = 10

• x = 10. OR x = 11

• X = 11, or X = -11

• x = 12

Tags

CCSS.8.EE.A.2

Solve using square roots.
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

Tags

CCSS.8.EE.A.2

Solve x² + 13 = 113

• x = 13

• x = 10

• x = 9, or x = 11

• x = 10 OR x = -10

Tags

CCSS.8.EE.A.2

• A
• B
• C
• D

Tags

CCSS.8.EE.A.2

Factor:
x² - 10x + 24

• (x - 6)(x - 4)

• (x + 6)(x + 4)

• (x - 12)(x + 2)

• (x - 8)(x - 3)

What are the factors of 3x²-17x+10

• (x-5)(3x-2)

• (x+5)(3x+2)

• (3x-5)(x-2)

• (x+5)(3x-2)

Find the factors of 5x²+20x+20

• 5(x+2)(x+2)

• 5(x-2)(x-2)

• 5(x+2)(x-2)

• (5x+2)(x+2)

x²+4x-32=0

• x= -8, 4

• x= 8, -4

• x= -8, -4

Tags

CCSS.HSA-REI.B.4B

What are the factors AND solutions of x² + 2x – 3 = 0

• (x - 2)(x + 1); x=2, x=-1

• (x + 1)(x - 3); x=-1, x=3

• (x + 2)(x - 1); x=-2, x=1

• (x - 1)(x + 3); x=1, x=-3

Tags

CCSS.HSA-REI.B.4B

x² = 16

• ± 4

• ± 8

• 4

• 8

Tags

CCSS.8.EE.A.2