Question

помогите найти производную у=1/5х^3(8-3х)

Answer 1

$y=frac{x^3(8-3x)}{5}; \ y'=(frac{x^3(8-3x)}{5})'=frac{1}{5}(8x^3-3x^4))'=0.2((8x^3)'-(3x^4)')=\ =0.2(8(x^3)'-3(x^4)')=\0.2(8*3x^{3-1}-3*4x^{4-1})=\0.2(24x^2-12x^3})=\ 4.8x^2-2.4x^3$