X^3+2x^2-9x-18=0

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Solution for X^3+2x^2-9x-18=0 equation:


Simplifying
X3 + 2x2 + -9x + -18 = 0

Reorder the terms:
-18 + X3 + -9x + 2x2 = 0

Solving
-18 + X3 + -9x + 2x2 = 0

Solving for variable 'X'.

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

Add '18' to each side of the equation.
-18 + X3 + -9x + 18 + 2x2 = 0 + 18

Reorder the terms:
-18 + 18 + X3 + -9x + 2x2 = 0 + 18

Combine like terms: -18 + 18 = 0
0 + X3 + -9x + 2x2 = 0 + 18
X3 + -9x + 2x2 = 0 + 18

Combine like terms: 0 + 18 = 18
X3 + -9x + 2x2 = 18

Add '9x' to each side of the equation.
X3 + -9x + 9x + 2x2 = 18 + 9x

Combine like terms: -9x + 9x = 0
X3 + 0 + 2x2 = 18 + 9x
X3 + 2x2 = 18 + 9x

Add '-2x2' to each side of the equation.
X3 + 2x2 + -2x2 = 18 + 9x + -2x2

Combine like terms: 2x2 + -2x2 = 0
X3 + 0 = 18 + 9x + -2x2
X3 = 18 + 9x + -2x2

Simplifying
X3 = 18 + 9x + -2x2

Reorder the terms:
-18 + X3 + -9x + 2x2 = 18 + 9x + -2x2 + -18 + -9x + 2x2

Reorder the terms:
-18 + X3 + -9x + 2x2 = 18 + -18 + 9x + -9x + -2x2 + 2x2

Combine like terms: 18 + -18 = 0
-18 + X3 + -9x + 2x2 = 0 + 9x + -9x + -2x2 + 2x2
-18 + X3 + -9x + 2x2 = 9x + -9x + -2x2 + 2x2

Combine like terms: 9x + -9x = 0
-18 + X3 + -9x + 2x2 = 0 + -2x2 + 2x2
-18 + X3 + -9x + 2x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
-18 + X3 + -9x + 2x2 = 0

The solution to this equation could not be determined.

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