Solving Quadratics Using Square Roots Practice

Solve the equation. Keep all non-perfect answers in simplest radical form.

 $y=3x^2+15$ 

Solve the equation. Keep all non-perfect answers in simplest radical form. 

 $x^2-9=0$  

Solve the equation. Keep all non-perfect answers in simplest radical form. (Type your answer in word form).

 $-7x^2+49=0$  

•  $x=-7,\ 7$  

•  $x=\pm\sqrt{7}$  

•  $x=\sqrt{7}$  

•  $x=\pm7$  

Solve the equation. Keep all non-perfect answers in simplest radical form.

 $42=3\left(x^2+5\right)$ 

Select all solutions to the following equation:
 $\left(a-2\right)^2=16$  

• -2

• -4

• 4

• 6

Solve the equation. Keep all non-perfect answers in simplest radical form.

 $6\left(x+4\right)^2=18$  

•  $4\pm\sqrt{3}$  

•  $\sqrt{3}+4,\ \sqrt{3}-4$  

•  $\sqrt{3}-4,\ -\sqrt{3}-4$  

Solve the equation. Keep all non-perfect answers in simplest radical form.

 $4x^2=128$ 

•  $4\sqrt{2}$  

•  $4\sqrt{2},\ -4\sqrt{2}$