-9X^8-6X^4+17=

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Solution for -9X^8-6X^4+17= equation:


Simplifying
-9X8 + -6X4 + 17 = 0

Reorder the terms:
17 + -6X4 + -9X8 = 0

Solving
17 + -6X4 + -9X8 = 0

Solving for variable 'X'.

Begin completing the square.  Divide all terms by
-9 the coefficient of the squared term: 

Divide each side by '-9'.
-1.888888889 + 0.6666666667X4 + X8 = 0

Move the constant term to the right:

Add '1.888888889' to each side of the equation.
-1.888888889 + 0.6666666667X4 + 1.888888889 + X8 = 0 + 1.888888889

Reorder the terms:
-1.888888889 + 1.888888889 + 0.6666666667X4 + X8 = 0 + 1.888888889

Combine like terms: -1.888888889 + 1.888888889 = 0.000000000
0.000000000 + 0.6666666667X4 + X8 = 0 + 1.888888889
0.6666666667X4 + X8 = 0 + 1.888888889

Combine like terms: 0 + 1.888888889 = 1.888888889
0.6666666667X4 + X8 = 1.888888889

The X term is 0.6666666667X4.  Take half its coefficient (0.3333333334).
Square it (0.1111111112) and add it to both sides.

Add '0.1111111112' to each side of the equation.
0.6666666667X4 + 0.1111111112 + X8 = 1.888888889 + 0.1111111112

Reorder the terms:
0.1111111112 + 0.6666666667X4 + X8 = 1.888888889 + 0.1111111112

Combine like terms: 1.888888889 + 0.1111111112 = 2.0000000002
0.1111111112 + 0.6666666667X4 + X8 = 2.0000000002

Factor a perfect square on the left side:
(X4 + 0.3333333334)(X4 + 0.3333333334) = 2.0000000002

Calculate the square root of the right side: 1.414213562

Break this problem into two subproblems by setting 
(X4 + 0.3333333334) equal to 1.414213562 and -1.414213562.

Subproblem 1

X4 + 0.3333333334 = 1.414213562 Simplifying X4 + 0.3333333334 = 1.414213562 Reorder the terms: 0.3333333334 + X4 = 1.414213562 Solving 0.3333333334 + X4 = 1.414213562 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.3333333334' to each side of the equation. 0.3333333334 + -0.3333333334 + X4 = 1.414213562 + -0.3333333334 Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000 0.0000000000 + X4 = 1.414213562 + -0.3333333334 X4 = 1.414213562 + -0.3333333334 Combine like terms: 1.414213562 + -0.3333333334 = 1.0808802286 X4 = 1.0808802286 Simplifying X4 = 1.0808802286 Reorder the terms: -1.0808802286 + X4 = 1.0808802286 + -1.0808802286 Combine like terms: 1.0808802286 + -1.0808802286 = 0.0000000000 -1.0808802286 + X4 = 0.0000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined.

Subproblem 2

X4 + 0.3333333334 = -1.414213562 Simplifying X4 + 0.3333333334 = -1.414213562 Reorder the terms: 0.3333333334 + X4 = -1.414213562 Solving 0.3333333334 + X4 = -1.414213562 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.3333333334' to each side of the equation. 0.3333333334 + -0.3333333334 + X4 = -1.414213562 + -0.3333333334 Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000 0.0000000000 + X4 = -1.414213562 + -0.3333333334 X4 = -1.414213562 + -0.3333333334 Combine like terms: -1.414213562 + -0.3333333334 = -1.7475468954 X4 = -1.7475468954 Simplifying X4 = -1.7475468954 Reorder the terms: 1.7475468954 + X4 = -1.7475468954 + 1.7475468954 Combine like terms: -1.7475468954 + 1.7475468954 = 0.0000000000 1.7475468954 + X4 = 0.0000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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