If y = 4×3 – 2×2 + x, find \(\frac{\delta y}{\delta x}\)

Mathematics JAMB 2014

If y = 4x3 – 2x2 + x, find \(\frac{\delta y}{\delta x}\)

  • 8x2 - 2x + 1
  • 8x2 - 4x + 1
  • 12x2 - 2x + 1
  • 12x2 - 4x + 1 checkmark

The correct answer is: D

Explanation

If y = 4x3 - 2x2 + x, then;

\(\frac{\delta y}{\delta x}\) = 3(4x2) - 2(2x) + 1

= 12x2 - 4x + 1

There is an explanation video available .

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