Add 40 to both sides in order to isolate 4x2. Then divide both sides by 4 and, lastly, square root both sides of the equation.
Both x=-10 and x=10 are solutions to the equation.
We will begin by dividing by 9. Then we will square root both sides.
Both x=-92 and x=92 are solutions to the equation.
Let's start by adding 3 to both sides. In order to get rid of the denominator, we need to multiply both sides by x.
Both x=-2 and x=2 are solutions to the equation.