x^3+9X^2+8x-42=0

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Solution for x^3+9X^2+8x-42=0 equation:


Simplifying
x3 + 9X2 + 8x + -42 = 0

Reorder the terms:
-42 + 9X2 + 8x + x3 = 0

Solving
-42 + 9X2 + 8x + x3 = 0

Solving for variable 'X'.

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

Add '42' to each side of the equation.
-42 + 9X2 + 8x + 42 + x3 = 0 + 42

Reorder the terms:
-42 + 42 + 9X2 + 8x + x3 = 0 + 42

Combine like terms: -42 + 42 = 0
0 + 9X2 + 8x + x3 = 0 + 42
9X2 + 8x + x3 = 0 + 42

Combine like terms: 0 + 42 = 42
9X2 + 8x + x3 = 42

Add '-8x' to each side of the equation.
9X2 + 8x + -8x + x3 = 42 + -8x

Combine like terms: 8x + -8x = 0
9X2 + 0 + x3 = 42 + -8x
9X2 + x3 = 42 + -8x

Add '-1x3' to each side of the equation.
9X2 + x3 + -1x3 = 42 + -8x + -1x3

Combine like terms: x3 + -1x3 = 0
9X2 + 0 = 42 + -8x + -1x3
9X2 = 42 + -8x + -1x3

Divide each side by '9'.
X2 = 4.666666667 + -0.8888888889x + -0.1111111111x3

Simplifying
X2 = 4.666666667 + -0.8888888889x + -0.1111111111x3

Reorder the terms:
-4.666666667 + X2 + 0.8888888889x + 0.1111111111x3 = 4.666666667 + -0.8888888889x + -0.1111111111x3 + -4.666666667 + 0.8888888889x + 0.1111111111x3

Reorder the terms:
-4.666666667 + X2 + 0.8888888889x + 0.1111111111x3 = 4.666666667 + -4.666666667 + -0.8888888889x + 0.8888888889x + -0.1111111111x3 + 0.1111111111x3

Combine like terms: 4.666666667 + -4.666666667 = 0.000000000
-4.666666667 + X2 + 0.8888888889x + 0.1111111111x3 = 0.000000000 + -0.8888888889x + 0.8888888889x + -0.1111111111x3 + 0.1111111111x3
-4.666666667 + X2 + 0.8888888889x + 0.1111111111x3 = -0.8888888889x + 0.8888888889x + -0.1111111111x3 + 0.1111111111x3

Combine like terms: -0.8888888889x + 0.8888888889x = 0.0000000000
-4.666666667 + X2 + 0.8888888889x + 0.1111111111x3 = 0.0000000000 + -0.1111111111x3 + 0.1111111111x3
-4.666666667 + X2 + 0.8888888889x + 0.1111111111x3 = -0.1111111111x3 + 0.1111111111x3

Combine like terms: -0.1111111111x3 + 0.1111111111x3 = 0.0000000000
-4.666666667 + X2 + 0.8888888889x + 0.1111111111x3 = 0.0000000000

The solution to this equation could not be determined.

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