Question

(3a+b)(2a+4b) equals what?

Answer 1

Use the FOIL method.

3a * 2a + 3a * 4b + b * 2a + b * 4b

Combine like terms.

6a + 12ab + 2ab + 4b^2

6a^2 + 14ab + 4b^2

Answer

`6a^2 + 14ab + 4b^2`