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Given the function 
f(x)=(6x^(2)+9)^(4), find 
f^(')(x) in any form.
Answer: 
f^(')(x)=

Given the function f(x)=(6x2+9)4 f(x)=\left(6 x^{2}+9\right)^{4} , find f(x) f^{\prime}(x) in any form.\newlineAnswer: f(x)= f^{\prime}(x)=

Full solution

Q. Given the function f(x)=(6x2+9)4 f(x)=\left(6 x^{2}+9\right)^{4} , find f(x) f^{\prime}(x) in any form.\newlineAnswer: f(x)= f^{\prime}(x)=
  1. Identify function & operation: Identify the function and the operation needed.\newlineWe need to find the derivative of the function f(x)=(6x2+9)4f(x)=(6x^{2}+9)^{4}. This requires using the chain rule for differentiation.
  2. Apply chain rule: Apply the chain rule.\newlineThe chain rule states that the derivative of a composite function is the derivative of the outer function evaluated at the inner function times the derivative of the inner function. In this case, the outer function is u4u^4 and the inner function is 6x2+96x^2 + 9.
  3. Differentiate outer function: Differentiate the outer function with respect to the inner function.\newlineLet u=6x2+9u = 6x^2 + 9. Then the outer function is u4u^4. The derivative of u4u^4 with respect to uu is 4u34u^3.
  4. Differentiate inner function: Differentiate the inner function with respect to xx. The derivative of 6x26x^2 with respect to xx is 12x12x, and the derivative of 99 with respect to xx is 00. So the derivative of the inner function 6x2+96x^2 + 9 with respect to xx is 12x12x.
  5. Combine derivatives: Combine the derivatives using the chain rule.\newlineNow we multiply the derivative of the outer function by the derivative of the inner function to get the derivative of the composite function.\newlinef(x)=4u3×12xf'(x) = 4u^3 \times 12x
  6. Substitute back into equation: Substitute uu back into the equation.\newlineReplace uu with 6x2+96x^2 + 9 in the derivative.\newlinef(x)=4(6x2+9)312xf'(x) = 4(6x^2 + 9)^3 \cdot 12x
  7. Simplify expression: Simplify the expression.\newlineWe can simplify the expression by multiplying the constants and combining like terms.\newlinef(x)=48x(6x2+9)3f'(x) = 48x(6x^2 + 9)^3

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