Simplify [tex]\frac{3-2\sqrt{5}}{\sqrt{5}-1}[/tex] giving your answer in the form [tex]p+q\sqrt{5}[/tex], where p and q are rational numbers.

Respuesta :

Answer:[tex]\frac{-7}{4} + \frac{1}{4} \sqrt{5}[/tex]

Step-by-step explanation:

You have to rationalise the denominator [tex]\sqrt{5} - 1[/tex] in this case so multiply the whole equation by [tex]\frac{\sqrt{5} + 1}{\sqrt{5} + 1}[/tex] (this is in fact multiplying by 1 since the top and bottom of the fraction are the same).

So then you would get [tex]\frac{3\sqrt{5} - 10 + 3 - 2\sqrt{5} }{5-1}[/tex]

then [tex]\frac{-7 + \sqrt{5}}{4}[/tex]

so p = [tex]\frac{-7}{4}[/tex] and q = [tex]\frac{1}{4}[/tex]