Posted by sherry on Monday, April 2, 2012 at 6:30pm.
x(x-3)=x-9 x-3x=x-9 x=x-6 x=-6
-6(-6-3) =/= -6-9 always check your answer. x(x-3) = x-9 x^2 - 3x = x - 9 x^2 - 4x + 9 = 0 x = 2 +/- i√5