Solving Equations by Taking Square Roots

3x^2-5=49
3x^2=54 Add 5 to each side
x^2=18 Divide each side by 3
x=±√18 Take square root
x=±√1x√9 Product property
x=±3 √2 Simplify

If the number behind the equal sign is negative it is a i.

MM2N1. Students will represent and operate with complex numbers.