X^3+15x^2+26x+90=0

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Solution for X^3+15x^2+26x+90=0 equation: 


Simplifying
X3 + 15x2 + 26x + 90 = 0

Reorder the terms:
90 + X3 + 26x + 15x2 = 0

Solving
90 + X3 + 26x + 15x2 = 0

Solving for variable 'X'.

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

Add '-90' to each side of the equation.
90 + X3 + 26x + -90 + 15x2 = 0 + -90

Reorder the terms:
90 + -90 + X3 + 26x + 15x2 = 0 + -90

Combine like terms: 90 + -90 = 0
0 + X3 + 26x + 15x2 = 0 + -90
X3 + 26x + 15x2 = 0 + -90

Combine like terms: 0 + -90 = -90
X3 + 26x + 15x2 = -90

Add '-26x' to each side of the equation.
X3 + 26x + -26x + 15x2 = -90 + -26x

Combine like terms: 26x + -26x = 0
X3 + 0 + 15x2 = -90 + -26x
X3 + 15x2 = -90 + -26x

Add '-15x2' to each side of the equation.
X3 + 15x2 + -15x2 = -90 + -26x + -15x2

Combine like terms: 15x2 + -15x2 = 0
X3 + 0 = -90 + -26x + -15x2
X3 = -90 + -26x + -15x2

Simplifying
X3 = -90 + -26x + -15x2

Reorder the terms:
90 + X3 + 26x + 15x2 = -90 + -26x + -15x2 + 90 + 26x + 15x2

Reorder the terms:
90 + X3 + 26x + 15x2 = -90 + 90 + -26x + 26x + -15x2 + 15x2

Combine like terms: -90 + 90 = 0
90 + X3 + 26x + 15x2 = 0 + -26x + 26x + -15x2 + 15x2
90 + X3 + 26x + 15x2 = -26x + 26x + -15x2 + 15x2

Combine like terms: -26x + 26x = 0
90 + X3 + 26x + 15x2 = 0 + -15x2 + 15x2
90 + X3 + 26x + 15x2 = -15x2 + 15x2

Combine like terms: -15x2 + 15x2 = 0
90 + X3 + 26x + 15x2 = 0

The solution to this equation could not be determined.

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