206k views
4 votes
Solve Using Square Roots
x^2-81=0
4x-25=0
x^2-18=0
3x^2-8=25
x^2+72=0

User Woojin
by
7.9k points

1 Answer

5 votes
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
User Perry Tew
by
8.2k points