Question

Solve Using Square Roots x^2-81=0 4x-25=0 x^2-18=0 3x^2-8=25 x^2+72=0

Answer 1

X=9 
x=6.25
x=4.24
x=3.32
x= can't take the square root of a negative number 

*also remember that when you take the square root it is the + and - sign for the answer