Question

Find the product (a^2-b)(5a^2+6b)

Answer 1

5a^​4​​+a^​2​​b−6b​^2​​

Explanation:

1. Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd.

5a^4+6a^2b−5ba^2−6b^2

2. Collect like terms.

5a^4+(6a^2b−5a^2b)−6b^2

3. Simplify.

5a^4+a^2b−6b^2