Question

What is the product of (3a - 4b + 1) and (2a + 5b - 3)?

Answer 1

Refer to the attachment

Answer 2

6a²+7ab-7a+17b-20b²-3

Explanation:

3a(2a+5b-3)-4b(2a+5b-3)+1(2a+5b-3)

6a²+15ab-9a-8ab-20b²+12b+2a+5b-3

Collect like terms

6a²+15ab-8ab-9a+2a+12b+5b-20b²-3

6a²+7ab-7a+17b-20b²-3