H(x)=x^2+21x-108

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Solution for H(x)=x^2+21x-108 equation: 


Simplifying
H(x) = x2 + 21x + -108

Multiply H * x
xH = x2 + 21x + -108

Reorder the terms:
xH = -108 + 21x + x2

Solving
xH = -108 + 21x + x2

Solving for variable 'x'.

Reorder the terms:
108 + -21x + xH + -1x2 = -108 + 21x + x2 + 108 + -21x + -1x2

Reorder the terms:
108 + -21x + xH + -1x2 = -108 + 108 + 21x + -21x + x2 + -1x2

Combine like terms: -108 + 108 = 0
108 + -21x + xH + -1x2 = 0 + 21x + -21x + x2 + -1x2
108 + -21x + xH + -1x2 = 21x + -21x + x2 + -1x2

Combine like terms: 21x + -21x = 0
108 + -21x + xH + -1x2 = 0 + x2 + -1x2
108 + -21x + xH + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
108 + -21x + xH + -1x2 = 0

The solution to this equation could not be determined.

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