Solve by Taking the Square Root

x² - 16=0

• x= 4,-4

• x= 8,-8

• x= - 4

• x=8

Tags

CCSS.8.EE.A.2

3x² - 48=0

• x=8, -8

• x=12.5, - 12.5

• x=3

• x= 4, -4

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Solve
(x-5)² = 25

• ±0
• ±10
• 10, 0
• -10, 0

Tags

CCSS.HSA-REI.B.4B

Solve
(x+3)²-5 = 9

• ±√14 -3
• √14 - 3
• ±11
• ±5

Tags

CCSS.HSA-REI.B.4B

What are the solutions?

• 0 and 8
• -2 and -4
• 3 and -1
• 2 and 4

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 for w.
2(w + 1)² = 72

• w = 6, -6
• w = 5, -7
• w = 5, -5
• w = 5

Tags

CCSS.HSA-REI.B.4B

Solve for k. 
-2(k -1)² - 4 = -36

• k = 5, -3
• k = 4, -4
• k = 4
• k = 5

Tags

CCSS.8.EE.A.2

4(x+9)²=24

• {-9+√6,-9-√6}
• {3,-3}
• {3}
• so solution

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
(2x+6)² + 8 = 24

• x = - 1 , x = - 5 
• x = - 1 , x = 5 
• x = 1 , x = 5
• x = 1 , x = - 5

Tags

CCSS.HSA-REI.B.4B