What is expand (3(15+7sqrt(5)))/4 ?

The solution to expand (3(15+7sqrt(5)))/4 is 45/4+(21sqrt(5))/4

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expand (3(15+7sqrt(5)))/4

expand

\frac{3 ( 15 + 7 5 )}{4}

\frac{45}{4} + \frac{21 5}{4}

Decimal Notation

22.98935 \dots

Solution steps

\frac{3 ( 15 + 7 5 )}{4}

Expand

3 (15 + 75) : 45 + 215

= \frac{45 + 21 5}{4}

Apply the fraction rule:

\frac{a \pm b}{c} = \frac{a}{c} \pm \frac{b}{c}

\frac{45 + 21 5}{4} = \frac{45}{4} + \frac{21 5}{4}

= \frac{45}{4} + \frac{21 5}{4}

\frac{2 ( 7 \cdot 7 ^{\frac{1}{2}} - 3 \cdot 3 ^{\frac{1}{2}} )}{9 \cdot 3 ^{\frac{1}{2}}}

P (- 1, - 1) y C (3, 5)

(2 + x + 1)^{2}

(3 - 1) + (3 + 1) i

\frac{( 2 s + 1 )}{s ( s + 1 ) ( s ^{2} + 4 s + 6 )}

What is expand (3(15+7sqrt(5)))/4 ?
The solution to expand (3(15+7sqrt(5)))/4 is 45/4+(21sqrt(5))/4