What is (d^2)/(dx^2)(4x-5x^{3/4}) ?

The answer to (d^2)/(dx^2)(4x-5x^{3/4}) is (15)/(16x^{5/4)}

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(d^2)/(dx^2)(4x-5x^{3/4})

\frac{d ^{2}}{d x ^{2}} (4 x - 5 x^{\frac{3}{4}})

\frac{15}{16 x ^{\frac{5}{4}}}

Solution steps

\frac{d ^{2}}{d x ^{2}} (4 x - 5 x^{\frac{3}{4}})

\frac{d}{d x} (4 x - 5 x^{\frac{3}{4}}) = 4 - \frac{15}{4 x ^{\frac{1}{4}}}

= \frac{d}{d x} (4 - \frac{15}{4 x ^{\frac{1}{4}}})

\frac{d}{d x} (4 - \frac{15}{4 x ^{\frac{1}{4}}}) = \frac{15}{16 x ^{\frac{5}{4}}}

= \frac{15}{16 x ^{\frac{5}{4}}}

What is (d^2)/(dx^2)(4x-5x^{3/4}) ?
The answer to (d^2)/(dx^2)(4x-5x^{3/4}) is (15)/(16x^{5/4)}