According to my text book the step by step solution for 4x-4y+ax-ay is as follows:
4(x - y) + a(x - y) to make (x - y)(4 + a). The book dosen't eloborate any farther than step three.
Please someone help me.
This is the step I don't understand. I'm not sure what was factored fromStep 1: Group terms with the common factors. In this problem the first two terms have a common factor of 4 and the last two terms have a common factor of a.
. . .4x - 4y + ax - ay = (4x - 4y) + (ax - ay)
Step 2: In each grouping, factor out the common factor.
. . .(4x - 4y) + (ax - ay) = 4(x - y) + a(x - y)
Step 3: Factor out the common factor that remains.
. . .4(x - y) + a(x - y) = (x - y)(4 + a)
4(x - y) + a(x - y) to make (x - y)(4 + a). The book dosen't eloborate any farther than step three.
Please someone help me.