# How do you find the linearization of #f(x) = x^4 + 5x^2# at a=-1?

Then,

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To find the linearization of ( f(x) = x^4 + 5x^2 ) at ( a = -1 ), follow these steps:

- Find the first derivative of ( f(x) ) with respect to ( x ).
- Evaluate the derivative at ( x = a ).
- Plug the values of ( a ) and ( f(a) ) into the equation for linearization: ( L(x) = f(a) + f'(a)(x - a) ).

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