Question

What is equivalent to the following expression (3p^2+5pq-q^2)+(p^2+3pq-2q^2)

Answer 1

`(3p^2+5pq-q^2)+(p^2+3pq-2q^2)\\\\=3p^2+5pq-q^2+p^2+3pq-2q^2\\\\=(3p^2+p^2)+(5pq+3pq)+(-q^2-2q^2)\\\\=4p^2+8pq-3q^2`