Question

Need Help now pleaseeeeeeeeee

Answer 1

I think a=7 the correct answet

Answer 2

a = 7

Explanation:

Using the rule of radicals

`√(a)` ×
`√(b)` =
`√(ab)`

Given

`√(5)`(
`√(18)` +
`√(32)`)

Distribute parenthesis by
`√(5)`

=
`√(5(18))` +
`√(5(32))`

=
`√(90)` +
`√(160)`

=
`√(9(10))` +
`√(16(10))`

=
`√(9)` ×
`√(10)` +
`√(16)` ×
`√(10)`

= 3
`√(10)` + 4
`√(10)`

= 7
`√(10)` ⇒ a = 7