Question

X•корень Х -8x^3
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Answer 1

$(x*sqrt{x}-8x^3)'=\ (xsqrt{x})'-(8x^3)'=\ (x)'sqrt{x}+x*(sqrt{x})-8(x^3)=\ 1*sqrt{x}+frac{x}{2sqrt{x}}-8*3x^{3-1}=\ sqrt{x}+0.5sqrt{x}-24x^2=\ 1.5sqrt{x}-24x^2$