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Algebra of Derivatives

Find dydx i...

Question

Find $\frac{d y}{d x}$ if $y = 7 x^{2} + 3 x$

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Solution

$y = 7 x^{2} + 3 x$

Differentiating w.r.t. $x$ , we get,

$\frac{d y}{d x} = \frac{d}{d x} 7 x^{2} + 3 x$

$\frac{d y}{d x} = 14 x + 3$

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