Solving Quadratic Equations by Taking Square Roots #2

Solve by taking square roots.
 $x^2-64=0$  

•  $\left\{\pm\ 32\right\}$  

•  $\left\{\pm\ 16\right\}$  

•  $\left\{\pm\ 8\right\}$  

•  $\left\{\pm\ 4\right\}$  

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots.
 $\left(x+4\right)^2=25$  

•  $\left\{-29\right\}$  

•  $\left\{-9,\ 1\right\}$  

•  $\left\{-1,\ 9\right\}$  

•  $\left\{1\right\}$  

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
5m² + 1 = 6

• m = 0
• m = 1 or -1
• m = √7
• m = 7/5 m = -7/5

Tags

CCSS.HSA-REI.B.4B

Solve.

(2x - 4)² = 16

• x = 4

• x = 10

• x = -2

• x = 0 and x = 4

Solve for x.

x² = 36

• x = ± 6

• x = ± 18

• x = 6

• x = 18

Tags

CCSS.8.EE.A.2

Solve for x.

(x - 7)² + 4 = 40

• x = -1, -13

• x = 1, 7

• x = -1, -7

• x = 1, 13

• x = -7, -13

Tags

CCSS.8.EE.A.2

Solve for x.

-2(x + 6)² + 13 = -85

• x = 1, 13

• x = -13, 1

• x = -6, 7

• x = -7, 6

Tags

CCSS.HSA-REI.B.4B

Solve for x.

x² - 13 = 12

• x = ± 25

• x = ± 5

• x = ± -1

• x = ± 1

Tags

CCSS.8.EE.A.2

Solve by taking square roots:

5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no real solution

Tags

CCSS.HSA-REI.B.4B

2x²=100

• x = ±25

• x = ±5√2

• x = ±√100

• x = ±√5