solving with square roots (short quiz)

Simplify  $\sqrt{54}$  

•  $3\sqrt{6}$  or  $-3\sqrt{6}$  
  

•  $3\sqrt{6}$  only
  

•  $6\sqrt{3}$ only

•  $6\sqrt{3}$  or  $-6\sqrt{3}$  
  

Solve by square roots

 $x^2-6=43$  

• x = $\sqrt{37}$

• x = 37 or - 37

• x = 7 or x = -7

• x = $\sqrt{43}+6$ or x = $-\sqrt{43}+6$

Tags

CCSS.HSA-REI.B.4B

 $x^2=121$  

What does x equal?

•  $11^2$  
  

• 11 or -11

• 11 only

• 12 or 1

Tags

CCSS.8.EE.A.2

 $\frac{1}{3}x^2=48$  

• 16 or -16

• 4 or -4

• 12 or -12

•  $4\sqrt{3}\$  or  $-4\sqrt{3}$  

Tags

CCSS.8.EE.A.2

 $\sqrt{64}$ =

• 6 only

• 6 or -6

• 8 or -8

• 8 only

Tags

CCSS.8.EE.A.2

Simplify $\sqrt{80}$  

•  $16\sqrt{5}$  
  

•  $2\sqrt{20}$  
  

•  $4\sqrt{5}$  
  

•  $8\sqrt{5}$  
  

Use the square root technique to find the TWO solutions to the equation

(2x - 1)² = 49

• 25 or -24

• -7 or 7

• -4 or 3

• -3 or 4

Tags

CCSS.HSA-REI.B.4B

 $\left(x+3\right)^2=4$  

Use the square root technique to find the two solutions to the equation above.

• x = 0 or x = 3

• x = -2 or x = 2

• x = 1 or x = 7

• x = -1 or x = -5

Tags

CCSS.HSA-REI.B.4B