Here's the question you clicked on:
kiara23
solve 5x^2=-45x
try putting all the terms equal to 0 and then factoring out
x^2 = - 9x x = -9 is the solution
You can't divide each side by x unless you claim x is not equal to 0
hmm i know i didn't divide x, i used inspection.
ah im sorry it appeared as though you did. but you still must include x=0
x^2 = -9x x^2 + 9x = 0 x(x + 9) = 0 now we get two solutions x =0 and x = 9 kiara don't do it my way (the way earlier I posted) walleye is right