-2x^3+19X^2-38x+21=0

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Solution for -2x^3+19X^2-38x+21=0 equation: 


Simplifying
-2x3 + 19X2 + -38x + 21 = 0

Reorder the terms:
21 + 19X2 + -38x + -2x3 = 0

Solving
21 + 19X2 + -38x + -2x3 = 0

Solving for variable 'X'.

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

Add '-21' to each side of the equation.
21 + 19X2 + -38x + -21 + -2x3 = 0 + -21

Reorder the terms:
21 + -21 + 19X2 + -38x + -2x3 = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 19X2 + -38x + -2x3 = 0 + -21
19X2 + -38x + -2x3 = 0 + -21

Combine like terms: 0 + -21 = -21
19X2 + -38x + -2x3 = -21

Add '38x' to each side of the equation.
19X2 + -38x + 38x + -2x3 = -21 + 38x

Combine like terms: -38x + 38x = 0
19X2 + 0 + -2x3 = -21 + 38x
19X2 + -2x3 = -21 + 38x

Add '2x3' to each side of the equation.
19X2 + -2x3 + 2x3 = -21 + 38x + 2x3

Combine like terms: -2x3 + 2x3 = 0
19X2 + 0 = -21 + 38x + 2x3
19X2 = -21 + 38x + 2x3

Divide each side by '19'.
X2 = -1.105263158 + 2x + 0.1052631579x3

Simplifying
X2 = -1.105263158 + 2x + 0.1052631579x3

Reorder the terms:
1.105263158 + X2 + -2x + -0.1052631579x3 = -1.105263158 + 2x + 0.1052631579x3 + 1.105263158 + -2x + -0.1052631579x3

Reorder the terms:
1.105263158 + X2 + -2x + -0.1052631579x3 = -1.105263158 + 1.105263158 + 2x + -2x + 0.1052631579x3 + -0.1052631579x3

Combine like terms: -1.105263158 + 1.105263158 = 0.000000000
1.105263158 + X2 + -2x + -0.1052631579x3 = 0.000000000 + 2x + -2x + 0.1052631579x3 + -0.1052631579x3
1.105263158 + X2 + -2x + -0.1052631579x3 = 2x + -2x + 0.1052631579x3 + -0.1052631579x3

Combine like terms: 2x + -2x = 0
1.105263158 + X2 + -2x + -0.1052631579x3 = 0 + 0.1052631579x3 + -0.1052631579x3
1.105263158 + X2 + -2x + -0.1052631579x3 = 0.1052631579x3 + -0.1052631579x3

Combine like terms: 0.1052631579x3 + -0.1052631579x3 = 0.0000000000
1.105263158 + X2 + -2x + -0.1052631579x3 = 0.0000000000

The solution to this equation could not be determined.

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