Question

1. 7ac² + bc²-7ad² - bd²​

Answer 1

Explanation:

You would start by factoring the left 2 terms, (7ac^2+bc^2). You would do this by seperating c from 7ac^2+bc^2. So it would be 7c^2(a+b)-7d^2(a+b)

The final answer would be (7c^2-7d^2)(a+b)