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Popular >

simplify 2/(2+sqrt(5))

Solution

simplify

\frac{2}{2 + 5}

Solution

- 4 + 25

+1

Decimal Notation

0.47213 \dots

Solution steps

\frac{2}{2 + 5}

Multiply by the conjugate

\frac{2 - 5}{2 - 5}

= \frac{2 ( 2 - 5 )}{( 2 + 5 ) ( 2 - 5 )}

Expand

2 (2 - 5) : 4 - 25

Expand

(2 + 5) (2 - 5) : - 1

= \frac{4 - 2 5}{- 1}

\frac{4 - 2 5}{- 1} = - 4 + 25

= - 4 + 25

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factor 15y^4+5y^2-20y factor

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simplify-(3/5)^{-2}simplify

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Frequently Asked Questions (FAQ)

What is 2/(2+sqrt(5)) ?
The solution to 2/(2+sqrt(5)) is -4+2sqrt(5)