x^3+bx^2=-c

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Solution for x^3+bx^2=-c equation: 


Simplifying
x3 + bx2 = -1c

Reorder the terms:
bx2 + x3 = -1c

Solving
bx2 + x3 = -1c

Solving for variable 'b'.

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

Add '-1x3' to each side of the equation.
bx2 + x3 + -1x3 = -1c + -1x3

Combine like terms: x3 + -1x3 = 0
bx2 + 0 = -1c + -1x3
bx2 = -1c + -1x3

Divide each side by 'x2'.
b = -1cx-2 + -1x

Simplifying
b = -1cx-2 + -1x

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