x^2+8x+q=0

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Solution for x^2+8x+q=0 equation:


Simplifying
x2 + 8x + q = 0

Reorder the terms:
q + 8x + x2 = 0

Solving
q + 8x + x2 = 0

Solving for variable 'q'.

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

Add '-8x' to each side of the equation.
q + 8x + -8x + x2 = 0 + -8x

Combine like terms: 8x + -8x = 0
q + 0 + x2 = 0 + -8x
q + x2 = 0 + -8x
Remove the zero:
q + x2 = -8x

Add '-1x2' to each side of the equation.
q + x2 + -1x2 = -8x + -1x2

Combine like terms: x2 + -1x2 = 0
q + 0 = -8x + -1x2
q = -8x + -1x2

Simplifying
q = -8x + -1x2

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