Solve Quadratics and Square Roots

Solve using square roots:

-7x² = -91

• x = 1 or x = -1

• No real solutions.

• x = 3.6

• x = 3.6 or x = -3.6

Tags

CCSS.8.EE.A.2

x²=25

• x = 5

• x = -5

• x = ±25

• x = ±5

Tags

CCSS.8.EE.A.2

Solve using square roots:

x² - 18 = 0

• x = ±√18

• No solution

• x = ±9

• x = 18

Tags

CCSS.8.EE.A.2

Solve using square roots.
k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Tags

CCSS.8.EE.A.2

Solve using square roots.
4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96

Tags

CCSS.8.EE.A.2

Solve for x.
-9p² = -576

• x = 8

• x = 64

• x = 8, -8

• x = 64, -64

Tags

CCSS.8.EE.A.2

Solve for h.
(h - 2)² = 9

• h = 5, -1

• h = 5, -5

• h = 5

• h = -1

Tags

CCSS.HSA-REI.B.4B

Solve for x.

x² - 49 = 0

• x = ± 7

• x = √49

• x = ± 49

• (x - 7)(x + 7) = 0

Tags

CCSS.HSA-REI.B.4B

• ± 1/4
• ± 9/36
• ± 1/2
• No real solution

Tags

CCSS.8.EE.A.2

Solve for x.

x² = 36

• x = ± 6

• x = ± 18

• x = 6

• x = 18

Tags

CCSS.8.EE.A.2