Question

Question will be in comments

Answer 1

so look at the denominator \[(1-\sqrt{5})\]

Answer 2

when they mean rationalize you multiply both the numerator and denominator by the conjugate

Answer 3

know what that means?

Answer 4

Yes I do

Answer 5

so what do you think the next step should be?

Answer 6

\[\frac{ 7 }{ 1-\sqrt{5} }*\frac{ 1+\sqrt{5} }{ 1+\sqrt{5} }\]

so you take the sign see that 1+sqrt(5)? switch that to a minus sign 1-sqrt5

Answer 7

I posted the wrong question, i'm sorry I grabbed the wrong photo

Answer 8

you know what a polynomial is right?

Answer 9

Start over, please.