Fun with Radicals

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What is the answer to the following:  $\sqrt{3x}-\ 7\ =\ 5$  

• 48

• 12

• 36

• 144

What is the value of x in the following equation:  $\sqrt{x\ +\ 11}\ =\ 5$  

• 25

• 14

• 36

• 116

What is the first step for the following equation:  $\sqrt{4x-1}=\ 12$  

• Divide both sides by 4.

• Add 1 to both sides.

• Square root both sides.

• Square both sides.

Solve.

• -2/3

• -2

• 2

• no solution

Solve

 $2\sqrt{2x\ +\ 5}\ =10$  

Type only the numerical answer. Type fraction answers using "/". 

Solve

 $-3\sqrt{-2x\ +\ 10}-12=-42$  

Type only the numerical answer. Type fraction answers using "/".