Solving Quadratics by Square Roots

Simplify the following radical: √24

• 2√6
• 4√6
• 2√12
• 3√8

Simplify the following radical: √300

• 3√10
• 2√150
• 100√3
• 10√3

What is the simplified form of √140

• 4√35
• 10√14
• 2√70
• 2√35

Simplify 4√75

• 4√5
• 12√5
• 20√3
• 7√3

x² = 81

• 9
• -9
• 40.5
• -9,9

Tags

CCSS.8.EE.A.2

Solve x²− 4 = 0

•  2 and -2
• 4 and -4
• 16 and -16
• 8 and -8

Tags

CCSS.8.EE.A.2

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

• No solution

Tags

CCSS.8.EE.A.2

Solve for x.

(x + 5)² = 16

• x = 11, -21

• x = -5, 0

• x = -1, -9

• x = 2, -4

Tags

CCSS.HSA-REI.B.4B

Solve for x: 
(x+6)²=49

• x=7,12
• x=±7
• x=1,-13
• x=43,-55

Tags

CCSS.8.EE.A.2