There are given the expressions: A= x^2+2x-2 and B= x^2-2x-4. Calculate A*B-A. There are given the expressions: A= x^2+2x-2 and B= x^2-2x-4. Calculate A*B-A. August 16, 2016 david ? There are given the expressions: A= x^2+2x-2 and B= x^2-2x-4. Calculate A*B-A.