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Popular >

(d^4)/(dx^4)((y)(-x^4+5x))

Solution

\frac{d ^{4}}{d x ^{4}} ((y) (- x^{4} + 5 x))

Solution

- x^{4} \frac{d ^{4} y}{d x ^{4}} - 16 x^{3} \frac{d ^{3} y}{d x ^{3}} - 72 x^{2} \frac{d ^{2} y}{d x ^{2}} - 96 x \frac{d y}{d x} + 5 x \frac{d ^{4} y}{d x ^{4}} + 5 \frac{d ^{3} y}{d x ^{3}} - 24 y + 15 \frac{d}{d x} (\frac{d ^{2} y}{d x ^{2}})

Solution steps

\frac{d ^{4}}{d x ^{4}} ((y) (- x^{4} + 5 x))

\frac{d}{d x} (y (- x^{4} + 5 x)) = \frac{d y}{d x} (- x^{4} + 5 x) + (- 4 x^{3} + 5) y

= \frac{d ^{3}}{d x ^{3}} (\frac{d y}{d x} (- x^{4} + 5 x) + (- 4 x^{3} + 5) y)

\frac{d}{d x} (\frac{d y}{d x} (- x^{4} + 5 x) + (- 4 x^{3} + 5) y) = \frac{d ^{2} y}{d x ^{2}} (- x^{4} + 5 x) + 2 (- 4 x^{3} + 5) \frac{d y}{d x} - 12 x^{2} y

= \frac{d ^{2}}{d x ^{2}} (\frac{d ^{2} y}{d x ^{2}} (- x^{4} + 5 x) + 2 (- 4 x^{3} + 5) \frac{d y}{d x} - 12 x^{2} y)

\frac{d}{d x} (\frac{d ^{2} y}{d x ^{2}} (- x^{4} + 5 x) + 2 (- 4 x^{3} + 5) \frac{d y}{d x} - 12 x^{2} y) = - x^{4} \frac{d ^{3} y}{d x ^{3}} - 12 x^{3} \frac{d ^{2} y}{d x ^{2}} - 36 x^{2} \frac{d y}{d x} + 5 x \frac{d ^{3} y}{d x ^{3}} - 24 x y + 15 \frac{d ^{2} y}{d x ^{2}}

= \frac{d}{d x} (- x^{4} \frac{d ^{3} y}{d x ^{3}} - 12 x^{3} \frac{d ^{2} y}{d x ^{2}} - 36 x^{2} \frac{d y}{d x} + 5 x \frac{d ^{3} y}{d x ^{3}} - 24 x y + 15 \frac{d ^{2} y}{d x ^{2}})

\frac{d}{d x} (- x^{4} \frac{d ^{3} y}{d x ^{3}} - 12 x^{3} \frac{d ^{2} y}{d x ^{2}} - 36 x^{2} \frac{d y}{d x} + 5 x \frac{d ^{3} y}{d x ^{3}} - 24 x y + 15 \frac{d ^{2} y}{d x ^{2}}) = - x^{4} \frac{d ^{4} y}{d x ^{4}} - 16 x^{3} \frac{d ^{3} y}{d x ^{3}} - 72 x^{2} \frac{d ^{2} y}{d x ^{2}} - 96 x \frac{d y}{d x} + 5 x \frac{d ^{4} y}{d x ^{4}} + 5 \frac{d ^{3} y}{d x ^{3}} - 24 y + 15 \frac{d}{d x} (\frac{d ^{2} y}{d x ^{2}})

= - x^{4} \frac{d ^{4} y}{d x ^{4}} - 16 x^{3} \frac{d ^{3} y}{d x ^{3}} - 72 x^{2} \frac{d ^{2} y}{d x ^{2}} - 96 x \frac{d y}{d x} + 5 x \frac{d ^{4} y}{d x ^{4}} + 5 \frac{d ^{3} y}{d x ^{3}} - 24 y + 15 \frac{d}{d x} (\frac{d ^{2} y}{d x ^{2}})

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Frequently Asked Questions (FAQ)

What is (d^4)/(dx^4)((y)(-x^4+5x)) ?
The answer to (d^4)/(dx^4)((y)(-x^4+5x)) is