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Beliebt Rechnen >

integral of 120x*(2x+1)^4

Lösung

\int 120 x \cdot (2 x + 1)^{4} d x

Lösung

120 (\frac{8 x ^{6}}{3} + \frac{32 x ^{5}}{5} + 6 x^{4} + \frac{8 x ^{3}}{3} + \frac{x ^{2}}{2}) + C

Schritte zur Lösung

\int 120 x (2 x + 1)^{4} d x

Entferne die Konstante:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 120 \cdot \int x (2 x + 1)^{4} d x

Multipliziere aus

x (2 x + 1)^{4} : 16 x^{5} + 32 x^{4} + 24 x^{3} + 8 x^{2} + x

= 120 \cdot \int 16 x^{5} + 32 x^{4} + 24 x^{3} + 8 x^{2} + x d x

Wende die Summenregel an:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= 120 (\int 16 x^{5} d x + \int 32 x^{4} d x + \int 24 x^{3} d x + \int 8 x^{2} d x + \int x d x)

\int 16 x^{5} d x = \frac{8 x ^{6}}{3}

\int 32 x^{4} d x = \frac{32 x ^{5}}{5}

\int 24 x^{3} d x = 6 x^{4}

\int 8 x^{2} d x = \frac{8 x ^{3}}{3}

\int x d x = \frac{x ^{2}}{2}

= 120 (\frac{8 x ^{6}}{3} + \frac{32 x ^{5}}{5} + 6 x^{4} + \frac{8 x ^{3}}{3} + \frac{x ^{2}}{2})

Füge eine Konstante zur Lösung hinzu

= 120 (\frac{8 x ^{6}}{3} + \frac{32 x ^{5}}{5} + 6 x^{4} + \frac{8 x ^{3}}{3} + \frac{x ^{2}}{2}) + C

Graph

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