man-man Posted:

Misunderstanding #1: You divided by zero when you cancelled in step 8. As it said at the top, a^2 and ab are equal, so a^2 – ab = 0. What you had on line 7 was equivalent to 2*0 = 0, which is true, but it’s not valid to “cancel” the zero to get 2=1

Correct, and i’m suprised.

My calculus teacher wasn’t able to figure that out.

What exactly is meant by “post up a storm”, because i’m too nooby to do anything.