Question

Simplify
(a+b)(5a- 3b)+(a-3b)(a-b)

Answer 1

Answer:

+6a^2+2ab-ab-3ab^2

Step-by-step explanation:

+a(5a-3b)+b(5a-3b)+a(a-b)-3b(a-b);

+5a^2-3ab+5ab-3b^2+a^2-ab-3ab^2+3b^2;

+6a^2+2ab-ab-3ab^2