X^3+8x^2+5x=-40

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Solution for X^3+8x^2+5x=-40 equation:


Simplifying
X3 + 8x2 + 5x = -40

Reorder the terms:
X3 + 5x + 8x2 = -40

Solving
X3 + 5x + 8x2 = -40

Solving for variable 'X'.

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

Add '-5x' to each side of the equation.
X3 + 5x + -5x + 8x2 = -40 + -5x

Combine like terms: 5x + -5x = 0
X3 + 0 + 8x2 = -40 + -5x
X3 + 8x2 = -40 + -5x

Add '-8x2' to each side of the equation.
X3 + 8x2 + -8x2 = -40 + -5x + -8x2

Combine like terms: 8x2 + -8x2 = 0
X3 + 0 = -40 + -5x + -8x2
X3 = -40 + -5x + -8x2

Simplifying
X3 = -40 + -5x + -8x2

Reorder the terms:
40 + X3 + 5x + 8x2 = -40 + -5x + -8x2 + 40 + 5x + 8x2

Reorder the terms:
40 + X3 + 5x + 8x2 = -40 + 40 + -5x + 5x + -8x2 + 8x2

Combine like terms: -40 + 40 = 0
40 + X3 + 5x + 8x2 = 0 + -5x + 5x + -8x2 + 8x2
40 + X3 + 5x + 8x2 = -5x + 5x + -8x2 + 8x2

Combine like terms: -5x + 5x = 0
40 + X3 + 5x + 8x2 = 0 + -8x2 + 8x2
40 + X3 + 5x + 8x2 = -8x2 + 8x2

Combine like terms: -8x2 + 8x2 = 0
40 + X3 + 5x + 8x2 = 0

The solution to this equation could not be determined.

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