30x(x-3) multiply please
You distribute the 30x to the equation in parenthesisSo basically you are doing (30xx)+(30x-3)So you get 30x^2-90xHope this helps!
30x(x-3)lets substitute x for 130 1(1 - 3)1 - 3 = 230 1 = 3030 * 2 = 60I hope I did it correctly.