Question

What are the solutions of the equation 2x^2=8? Use a graph of a related function whose roots answer the question.

Answer 1

x​2​​ =  8 over 2

​​  Simplify

8 over 2

​​  to 44

{x}^{2}=4x

Take the square root of both sides

x=\pm \sqrt{4}x=±√ 4

​

​x= plus or minus 2