Question

MATH HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PLEASE reposting cause no one answered them

Answer 1

A

since the 3 is outside the radical then
`√(9)` = 3, hence

x = 9

B

using the law of radicals

`√(a)` ×
`√(b)` =
`√(ab)`

we can separate the factors as

`√(24)` × √
`x^(10)` × √
`y^(5)`

= 2
`√(6)`
`x^(5)`
`y^(5/2)`

C

`√(121)` +
`√(50)` = 11 + 5
`√(2)`

D

`√(20)` ×
`√(63)`

= 2
`√(5)` × 3
`√(7)`

= 6
`√(35)`