x^2+2x+k=0

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Solution for x^2+2x+k=0 equation:


Simplifying
x2 + 2x + k = 0

Reorder the terms:
k + 2x + x2 = 0

Solving
k + 2x + x2 = 0

Solving for variable 'k'.

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

Add '-2x' to each side of the equation.
k + 2x + -2x + x2 = 0 + -2x

Combine like terms: 2x + -2x = 0
k + 0 + x2 = 0 + -2x
k + x2 = 0 + -2x
Remove the zero:
k + x2 = -2x

Add '-1x2' to each side of the equation.
k + x2 + -1x2 = -2x + -1x2

Combine like terms: x2 + -1x2 = 0
k + 0 = -2x + -1x2
k = -2x + -1x2

Simplifying
k = -2x + -1x2

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