f(4)=9x^4-8x^2+9x-5

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Solution for f(4)=9x^4-8x^2+9x-5 equation: 


Simplifying
f(4) = 9x4 + -8x2 + 9x + -5

Reorder the terms for easier multiplication:
4f = 9x4 + -8x2 + 9x + -5

Reorder the terms:
4f = -5 + 9x + -8x2 + 9x4

Solving
4f = -5 + 9x + -8x2 + 9x4

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by '4'.
f = -1.25 + 2.25x + -2x2 + 2.25x4

Simplifying
f = -1.25 + 2.25x + -2x2 + 2.25x4

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