Solving Quadratics- More Practice

Solve the perfect square equation

 $25\ =\ \left(x+5\right)^{2\ }$  

•  $x\ =\ \pm5$  

• x = 0 and x  = -10

• x = 5

• x = 10

What do you need to do first to solve for x in the equation

 $30\ =\ \left(x\ +2\right)^{2\ }-\ 6$  

Solve for x in the equation

 $30\ =\ \left(x\ +2\right)^{2\ }-\ 6$  

• x = -4 and 8

• x = 2 and -6

• x = 4 and -8

• x =  $\pm6$  

True or false:

You can always take the square root as the first thing you do when solving perfect square equations?

• True

• False

What is the first step in solving the equation

 $\left(x+11\right)^2+5\ =\ 5$  ?

Solve for x in the equation

 $\left(x+11\right)^2+5\ =\ 5$  

• x = -25

• x = 11

• x = 25

• x = -11

What is the first step to solving for x in the equation

 $\left(2x-3\right)^{2\ }=\ 49$  

Solve for x in the equation

 $\left(2x-3\right)^{2\ }=\ 49$  

• x = 5 and -2

• x = 7

• x = 5

• x = -7 and -5

What is the first step in solving the equation $\left(7x-5\right)^{2\ }-\ 4\ =\ 0$  

Solve for x in the equation $\left(7x-5\right)^2-4\ =\ 0$  

• x =  $\pm2$  

• x = -7 and 10

• x = 7

• x= 7 and  $\frac{3}{7}$