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If y = 2 x ^(3) + 3 x ^(2) - 36 x + 7 ...

If ` y = 2 x ^(3) + 3 x ^(2) - 36 x + 7 ` find the values of x for which `(dy)/(dx) = 0 `

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The correct Answer is:
x = 2 and x = - 3
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