Question

Help plz. question is in photo.

Answer 1

A.)
`10√(5)`

Explanation:

Fist simplify
`40√(40)` :

`40√(40)\\\\40√(4)√(10)\\\\40*2√(10)\\\\80√(10)`

Now simplify
`4√(8)` :

`4√(8)\\\\4√(4)√(2) \\\\4*2√(2)\\\\8√(2)`

Insert both into expression:

`(80√(10))/(8√(2))`

Simplify:

`(10√(10))/(√(2))`

Rationalize:

`(√(2))/(√(2))*(10√(10))/(√(2))\\\\(10√(20))/(√(4))\\\\(10√(20) )/(2)`

Simplify:

`5√(20)`

Convert to simplest radical form:

`5√(4*5) \\\\5√(4)√(5)\\\\5*2√(5)\\\\10√(5)`

:Done

Answer 2

A.)
`10√(5)`

Explanation:

I'll explain rn hold up