Question

Question #3ada4

Answer 1

`10b^2+4b+4`

Explanation:

Multiply each term in the bracket by `color(red)(2)`

`rArrcolor(red)(2)(5b^2+2b+2)`

`=(color(red)(2)xx5b^2)+(color(red)(2)xx2b)+(color(red)(2)xx2)`

`=10b^2+4b+4`