What could be the first step in solving the equation 13x² + 9 = 45?
A.Add 9 to both sides of the equation.
B.Multiply both sides of the equation by 13.
C.Subtract 9 from both sides of the equation.
D.Take the square root of both sides of the equation.
The first step would be to subtract 9 from both sides. We want to get x by itself on one side, so we subtract 9, and whatever we do to one side, we have to do to the other. Hope this helps.
