f=3(x^2+3x-7)

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Solution for f=3(x^2+3x-7) equation: 


Simplifying
f = 3(x2 + 3x + -7)

Reorder the terms:
f = 3(-7 + 3x + x2)
f = (-7 * 3 + 3x * 3 + x2 * 3)
f = (-21 + 9x + 3x2)

Solving
f = -21 + 9x + 3x2

Solving for variable 'f'.

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

Simplifying
f = -21 + 9x + 3x2

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