Question

Simplify. Remember to use absolute-value notation when necessary. If a root cannot be simplified, state this

4√(7b)4

Answer 1

I'm assuming 7b and 4 are under the radical.

4*sqrt(7b4)=
4*2sqrt(7b) =
8sqrt(7b)=
8*2.65sqrt(b) =
21.17sqrt(b).

If only 7b is under the radical:
4*sqrt(7b) * 4 =
16*sqrt(7b) =
16*2.65sqrt(b) =
42.33*sqrt(b).