X^3+4x^2-16x-72=0

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Solution for X^3+4x^2-16x-72=0 equation:


Simplifying
X3 + 4x2 + -16x + -72 = 0

Reorder the terms:
-72 + X3 + -16x + 4x2 = 0

Solving
-72 + X3 + -16x + 4x2 = 0

Solving for variable 'X'.

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

Add '72' to each side of the equation.
-72 + X3 + -16x + 72 + 4x2 = 0 + 72

Reorder the terms:
-72 + 72 + X3 + -16x + 4x2 = 0 + 72

Combine like terms: -72 + 72 = 0
0 + X3 + -16x + 4x2 = 0 + 72
X3 + -16x + 4x2 = 0 + 72

Combine like terms: 0 + 72 = 72
X3 + -16x + 4x2 = 72

Add '16x' to each side of the equation.
X3 + -16x + 16x + 4x2 = 72 + 16x

Combine like terms: -16x + 16x = 0
X3 + 0 + 4x2 = 72 + 16x
X3 + 4x2 = 72 + 16x

Add '-4x2' to each side of the equation.
X3 + 4x2 + -4x2 = 72 + 16x + -4x2

Combine like terms: 4x2 + -4x2 = 0
X3 + 0 = 72 + 16x + -4x2
X3 = 72 + 16x + -4x2

Simplifying
X3 = 72 + 16x + -4x2

Reorder the terms:
-72 + X3 + -16x + 4x2 = 72 + 16x + -4x2 + -72 + -16x + 4x2

Reorder the terms:
-72 + X3 + -16x + 4x2 = 72 + -72 + 16x + -16x + -4x2 + 4x2

Combine like terms: 72 + -72 = 0
-72 + X3 + -16x + 4x2 = 0 + 16x + -16x + -4x2 + 4x2
-72 + X3 + -16x + 4x2 = 16x + -16x + -4x2 + 4x2

Combine like terms: 16x + -16x = 0
-72 + X3 + -16x + 4x2 = 0 + -4x2 + 4x2
-72 + X3 + -16x + 4x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
-72 + X3 + -16x + 4x2 = 0

The solution to this equation could not be determined.

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