Question

How do you solve `2sqrt(4x)=20`?

Answer 1

`color(blue)(x=25`

Explanation:

`2sqrt(4x)=20`
Squaring both sides

`2^2(sqrt(4x))^2=20^2`

`4 * 4x=400`

`16x=400`

`x=400/16`

`color(blue)(x=25`