F(x)=3x^2-2x-21

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Solution for F(x)=3x^2-2x-21 equation: 


Simplifying
F(x) = 3x2 + -2x + -21

Multiply F * x
xF = 3x2 + -2x + -21

Reorder the terms:
xF = -21 + -2x + 3x2

Solving
xF = -21 + -2x + 3x2

Solving for variable 'x'.

Reorder the terms:
21 + 2x + xF + -3x2 = -21 + -2x + 3x2 + 21 + 2x + -3x2

Reorder the terms:
21 + 2x + xF + -3x2 = -21 + 21 + -2x + 2x + 3x2 + -3x2

Combine like terms: -21 + 21 = 0
21 + 2x + xF + -3x2 = 0 + -2x + 2x + 3x2 + -3x2
21 + 2x + xF + -3x2 = -2x + 2x + 3x2 + -3x2

Combine like terms: -2x + 2x = 0
21 + 2x + xF + -3x2 = 0 + 3x2 + -3x2
21 + 2x + xF + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
21 + 2x + xF + -3x2 = 0

The solution to this equation could not be determined.

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