Solve by taking the square root of both sides.

(3x+3) ^2=25

Solve your equation step-by-step.

(3x+3) 2=25

Simplify both sides of the equation.

9x2+18x+9=25

Subtract 25 from both sides.

9x2+18x+9-25=25-25

9x2+18x-16=0

Factor left side of equation.

(3x-2) (3x+8) = 0

Set factors equal to 0.

3x-2=0 or 3x+8=0

x=2/3 or x=-8/3

Any equation with something squared in it has two solutions.

(3x + 3) ² = 25

Take the square root of each side: (3x + 3) = + 5

(3x + 3) = - 5

Subtract 3 from each side: 3x = 2

3x = - 8

Divide each side by 3 : x = 2/3

x = - 8/3