Apply the quotient rule, which is:
dxdg(x)f(x)=g2(x)−f(x)dxdg(x)+g(x)dxdf(x)
f(x)=x2+36 and g(x)=x.
To find dxdf(x):
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Differentiate x2+36 term by term:
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The derivative of the constant 36 is zero.
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Apply the power rule: x2 goes to 2x
The result is: 2x
To find dxdg(x):
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Apply the power rule: x goes to 1
Now plug in to the quotient rule:
x2x2−36