X^3+7x^2-8x-56=0

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Solution for X^3+7x^2-8x-56=0 equation:


Simplifying
X3 + 7x2 + -8x + -56 = 0

Reorder the terms:
-56 + X3 + -8x + 7x2 = 0

Solving
-56 + X3 + -8x + 7x2 = 0

Solving for variable 'X'.

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

Add '56' to each side of the equation.
-56 + X3 + -8x + 56 + 7x2 = 0 + 56

Reorder the terms:
-56 + 56 + X3 + -8x + 7x2 = 0 + 56

Combine like terms: -56 + 56 = 0
0 + X3 + -8x + 7x2 = 0 + 56
X3 + -8x + 7x2 = 0 + 56

Combine like terms: 0 + 56 = 56
X3 + -8x + 7x2 = 56

Add '8x' to each side of the equation.
X3 + -8x + 8x + 7x2 = 56 + 8x

Combine like terms: -8x + 8x = 0
X3 + 0 + 7x2 = 56 + 8x
X3 + 7x2 = 56 + 8x

Add '-7x2' to each side of the equation.
X3 + 7x2 + -7x2 = 56 + 8x + -7x2

Combine like terms: 7x2 + -7x2 = 0
X3 + 0 = 56 + 8x + -7x2
X3 = 56 + 8x + -7x2

Simplifying
X3 = 56 + 8x + -7x2

Reorder the terms:
-56 + X3 + -8x + 7x2 = 56 + 8x + -7x2 + -56 + -8x + 7x2

Reorder the terms:
-56 + X3 + -8x + 7x2 = 56 + -56 + 8x + -8x + -7x2 + 7x2

Combine like terms: 56 + -56 = 0
-56 + X3 + -8x + 7x2 = 0 + 8x + -8x + -7x2 + 7x2
-56 + X3 + -8x + 7x2 = 8x + -8x + -7x2 + 7x2

Combine like terms: 8x + -8x = 0
-56 + X3 + -8x + 7x2 = 0 + -7x2 + 7x2
-56 + X3 + -8x + 7x2 = -7x2 + 7x2

Combine like terms: -7x2 + 7x2 = 0
-56 + X3 + -8x + 7x2 = 0

The solution to this equation could not be determined.

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