f(x)=7x*7x-4x

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Solution for f(x)=7x*7x-4x equation: 


Simplifying
f(x) = 7x * 7x + -4x

Multiply f * x
fx = 7x * 7x + -4x

Reorder the terms for easier multiplication:
fx = 7 * 7x * x + -4x

Multiply 7 * 7
fx = 49x * x + -4x

Multiply x * x
fx = 49x2 + -4x

Reorder the terms:
fx = -4x + 49x2

Solving
fx = -4x + 49x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -4 + 49x

Simplifying
f = -4 + 49x

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