Helping students gain understanding and self-confidence in algebra.
Gsingh wrote:I made a common denominator of -(x-2)(x+2) on the left side and then combined to form one fraction, then i cross multiplied and somehow i ended up with x^2(x-3) = -20
Gsingh wrote:Ok these were my steps... (im going to explain in words instead of pictures because it took me forever to post that last message)
1. factored the 4-x^2 into -(x+2)(x-2).
Gsingh wrote:4. i simplified to get -x^2/-(x^2-4) = 5/(x+2)
5. cross multiply... -x^2(x+2) = -5(x^2-4)