Pre-Algebra Chapter 11 Quiz 1

 $-\sqrt{64}$  

• -8

• 8

• -4

• 4

• not real

Tags

CCSS.8.EE.A.2

 $\sqrt{-81}$  

• -9

• 9

• -3

• 3

• not real

Simplify $\sqrt{5^2-3^2}$ 

• 2

• 3

• 4

•  $\frac{5}{3}$  

• not real

Tags

CCSS.HSN.RN.A.2

Which of the following is the first step in solving radical equations?

• Square both sides of the equation

• Isolate the radical term on one side of the equation

• Check the solution in the original equation

• Solve the resulting equation

Tags

CCSS.HSA.REI.A.2

 $4\sqrt{x}=\ 9$  

•  $\frac{81}{16}$  

•  $\frac{81}{4}$  

•  $\frac{9}{4}$  

•  $\frac{3}{2}$  

• no real solution

 $4\sqrt{x}+25=9$  

• 16

• 4

• -4

• -16

• no real solution

Tags

CCSS.HSA.REI.A.2

 $\sqrt{4x}=9$  

•  $\frac{81}{16}$  

•  $\frac{81}{4}$  

•  $\frac{9}{4}$  

•  $\frac{3}{2}$  

• no real solution

 $x^2=64$  

•  $\pm8$  

•  $\pm16$  

•  $\pm32$  

•  $\pm4,096$  

Tags

CCSS.8.EE.A.2

 $x^2=-36$  

•  $\pm6$  

•  $\pm12$  

•  $\pm18$  

•  $\pm1,296$  

• no real solution

Tags

CCSS.8.EE.A.2

 $3\left(x+2\right)^2=27$  

• 1 or -1

• 1 or -5

• -1 or 5

• -5 or 5

• no real solution

Tags

CCSS.HSA-REI.B.4B