What is (d^2)/(dx^2)(sqrt(x^2+64)) ?

The answer to (d^2)/(dx^2)(sqrt(x^2+64)) is (64)/((x^2+64)sqrt(x^2+64))

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(d^2)/(dx^2)(sqrt(x^2+64))

\frac{d ^{2}}{d x ^{2}} (x^{2} + 64)

\frac{64}{( x ^{2} + 64 ) x ^{2} + 64}

Solution steps

\frac{d ^{2}}{d x ^{2}} (x^{2} + 64)

\frac{d}{d x} (x^{2} + 64) = \frac{x}{x ^{2} + 64}

= \frac{d}{d x} (\frac{x}{x ^{2} + 64})

\frac{d}{d x} (\frac{x}{x ^{2} + 64}) = \frac{64}{( x ^{2} + 64 ) x ^{2} + 64}

= \frac{64}{( x ^{2} + 64 ) x ^{2} + 64}

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What is (d^2)/(dx^2)(sqrt(x^2+64)) ?
The answer to (d^2)/(dx^2)(sqrt(x^2+64)) is (64)/((x^2+64)sqrt(x^2+64))