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

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


Simplifying
X3 + 2x2 + 7x + -8 = 0

Reorder the terms:
-8 + X3 + 7x + 2x2 = 0

Solving
-8 + X3 + 7x + 2x2 = 0

Solving for variable 'X'.

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

Add '8' to each side of the equation.
-8 + X3 + 7x + 8 + 2x2 = 0 + 8

Reorder the terms:
-8 + 8 + X3 + 7x + 2x2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + X3 + 7x + 2x2 = 0 + 8
X3 + 7x + 2x2 = 0 + 8

Combine like terms: 0 + 8 = 8
X3 + 7x + 2x2 = 8

Add '-7x' to each side of the equation.
X3 + 7x + -7x + 2x2 = 8 + -7x

Combine like terms: 7x + -7x = 0
X3 + 0 + 2x2 = 8 + -7x
X3 + 2x2 = 8 + -7x

Add '-2x2' to each side of the equation.
X3 + 2x2 + -2x2 = 8 + -7x + -2x2

Combine like terms: 2x2 + -2x2 = 0
X3 + 0 = 8 + -7x + -2x2
X3 = 8 + -7x + -2x2

Simplifying
X3 = 8 + -7x + -2x2

Reorder the terms:
-8 + X3 + 7x + 2x2 = 8 + -7x + -2x2 + -8 + 7x + 2x2

Reorder the terms:
-8 + X3 + 7x + 2x2 = 8 + -8 + -7x + 7x + -2x2 + 2x2

Combine like terms: 8 + -8 = 0
-8 + X3 + 7x + 2x2 = 0 + -7x + 7x + -2x2 + 2x2
-8 + X3 + 7x + 2x2 = -7x + 7x + -2x2 + 2x2

Combine like terms: -7x + 7x = 0
-8 + X3 + 7x + 2x2 = 0 + -2x2 + 2x2
-8 + X3 + 7x + 2x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
-8 + X3 + 7x + 2x2 = 0

The solution to this equation could not be determined.

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