Question

How do you solve `2x^2 = 32`?

Answer 1

`x=4 or x=-4`

Explanation:

First divide throughout by `2` to get

`x^2=16`

Now take the square root on both sides to get

`x=+-4`.

You may now substitute the values of `x=4 and x=-4` back into the original equation and check that it satisfies the equation which it does.