Question

How do you find the product `2ab(7a^4b^2+a^5b-2a)`?

Answer 1

See explanation.

Explanation:

To find the product you have to multiply each term in the brackets by `2ab`:

`2abxx(7a^4b^2+a^5b-2a)=`

`=2abxx7a^4b+2abxxa^5b+2abxx(-2a)=`

`=14a^5b^2+2a^6b^2+(-4a^2b)=`

`=14a^5b^2+2a^6b^2-4a^2b`