Question

Solve:
5 over quantity of 4 plus square root of 5

Answer 1

Multiply numerator and denominator by the conjugate of 4+sqrt5

Answer 2

\[\frac{5}{(4+\sqrt{5})}\times\frac{(4-\sqrt{5})}{(4-\sqrt{5})}\]

Answer 3

Can you finish that?

Answer 4

thats a viable option, but how is that a solution to an expression?

Answer 5

so its 20 - sqrt of 5 over 11?

Answer 6

You getting warm. Multiply both terms of the binomial by 5 in the numerator

Answer 7

\[5(4-\sqrt{5})=20-5\sqrt{5}\]

Answer 8

and then that over 11?

Answer 9

Yes.