# How do you solve #2x^2-6=42#?

##### 1 Answer

Aug 19, 2016

#### Explanation:

first move the

then divide by 2

now take the square root

since x is squared in the equation then x can be negative or positive so we must remember to include this possibility when dealing with powers that are even

you should then plug in the numbers and make sure they both work, which they do.