Question

Factor
(a-2b) (3x-5y) + (2b-a)(x-y)

Answer 1

8by + 2ax - 4bx - 4ay

Explanation:

I assume you mean expand so:

(a - 2b)(3x - 5y) + (2b - a)(x - y)

3ax - 5ay - 6bx + 10by + 2bx - 2by - ax + ay

Now collect like terms:

2ax - 4ay - 4bx + 8by

This is your answer but in a better order:

8by + 2ax - 4bx - 4ay