Question

найти производную функции х^4+х^3+81/ х^2

Answer 1

$=4 x^{3} +3 x^{2} +81*(-2)x=4 x^{3} +3 x^{2} -162x$

Answer 2

y=x^4+x³+81x^-2
y`=4x³+3x²-2*81x^-3=4x³+3x²-162/x³