f(x)=15r^8-25r^4

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Solution for f(x)=15r^8-25r^4 equation: 


Simplifying
f(x) = 15r8 + -25r4

Multiply f * x
fx = 15r8 + -25r4

Reorder the terms:
fx = -25r4 + 15r8

Solving
fx = -25r4 + 15r8

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -25r4x-1 + 15r8x-1

Simplifying
f = -25r4x-1 + 15r8x-1

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