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Question

Find the derivative dydx\frac{dy}{dx} of the algebraic function: y=3x35x2+2x7y = 3x^3 - 5x^2 + 2x - 7.

Verified Answer

9x210x+29x^2 - 10x + 2

Explanation & Step-by-Step Solving

Context: Apply the basic power rule of differentiation ddx(axn)=anxn1\frac{d}{dx}(ax^n) = anx^{n-1} term by term:dydx=(3×3)x31(5×2)x21+2=9x210x+2\frac{dy}{dx} = (3 \times 3)x^{3-1} - (5 \times 2)x^{2-1} + 2 = 9x^2 - 10x + 2

Topic Tags

Exam aration and answersWAEC Exam arationJAMB Exam arationacademic problems

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