-x^2+bx+c=0

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Solution for -x^2+bx+c=0 equation:


Simplifying
-1x2 + bx + c = 0

Reorder the terms:
bx + c + -1x2 = 0

Solving
bx + c + -1x2 = 0

Solving for variable 'b'.

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

Add '-1c' to each side of the equation.
bx + c + -1c + -1x2 = 0 + -1c

Combine like terms: c + -1c = 0
bx + 0 + -1x2 = 0 + -1c
bx + -1x2 = 0 + -1c
Remove the zero:
bx + -1x2 = -1c

Add 'x2' to each side of the equation.
bx + -1x2 + x2 = -1c + x2

Combine like terms: -1x2 + x2 = 0
bx + 0 = -1c + x2
bx = -1c + x2

Divide each side by 'x'.
b = -1cx-1 + x

Simplifying
b = -1cx-1 + x

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