What is (4+sqrt(20))/2 ?

The solution to (4+sqrt(20))/2 is 2+sqrt(5)

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simplify (4+sqrt(20))/2

simplify

\frac{4 + 20}{2}

2 + 5

Decimal Notation

4.23606 \dots

Solution steps

\frac{4 + 20}{2}

20 = 25

= \frac{4 + 2 5}{2}

Factor out common term

2 : 2 (2 + 5)

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

Cancel the common factor:

2

= 2 + 5

\frac{48 x ^{5} y ^{3}}{y ^{4}} \cdot \frac{x ^{2} y}{6 x ^{3} y ^{2}}

\frac{2 ^{3}}{3} - \frac{1 ^{3}}{3}

2 y^{2} + 7 y + 6

2 \cdot 14

12 x^{2} - 54 x y