f(x)=2x+x^2+3x(4x)

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Solution for f(x)=2x+x^2+3x(4x) equation:


Simplifying
f(x) = 2x + x2 + 3x(4x)

Multiply f * x
fx = 2x + x2 + 3x(4x)

Remove parenthesis around (4x)
fx = 2x + x2 + 3x * 4x

Reorder the terms for easier multiplication:
fx = 2x + x2 + 3 * 4x * x

Multiply 3 * 4
fx = 2x + x2 + 12x * x

Multiply x * x
fx = 2x + x2 + 12x2

Combine like terms: x2 + 12x2 = 13x2
fx = 2x + 13x2

Solving
fx = 2x + 13x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 2 + 13x

Simplifying
f = 2 + 13x

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