Question

Which choice is the conjugate of the expression below when x>-4 5-square root of x+4

Answer 1

The conjugate is 5+√x+4

Explanation:

To find the conjugate of of expression 5-√x+4

when x>-4

First let us understand that in simple terms terms the conjugate of a radical simply involves the change in sign of the radical

in the problem the conjugate of

5-√x+4 is 5+√x+4

it is that simple Just alternate the sign and you are done!!!

Answer 2

`5+√(x+4)`

Explanation:

The conjugate of the radical expression
`a+√(b)` is
`a-√(b)`

The conjugate of the radical expression
`a-√(b)` is
`a+√(b)`

The sign of the radical becomes its additive inverse in the conjugate,

The given expression is

`5-√(x+4)` where
`x>-4` (domain)

The conjugate of this expression is
`5+√(x+4)`