-9x^8-6x^4+17=0

Simple and best practice solution for -9x^8-6x^4+17=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for -9x^8-6x^4+17=0 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.

See similar equations:

| 4(9-3b)=36 | | 150x+72=240x+54 | | c=150-240 | | 4+6u=-2 | | .5y=19.5 | | x=72+45 | | ln(x+4)-ln(10)=ln(12) | | 6+n+14=0 | | -5-4x-7x=1 | | 18p+11+3=12 | | 21=2(x-8)+3x | | -46=3x+8 | | 11+6n= | | 11+5n= | | -120=10+10x | | 21=13w-5 | | 9a-6=5a-14 | | 10p-7=-17 | | 10+5n= | | -7v+4=-17 | | 4(1-3n-14)=4(2n+3)-9 | | 5x-2=3x+18 | | 11=-2-r | | 2y-7=3 | | 65=9m+2 | | 40+5x=340-45x | | 12+5n= | | 7n-2(n+5)=3n-16 | | 8x-3x+4=-36 | | .6n=-15 | | .50r+2(.75r-1)=.25r+6 | | 150+72x=240+54x |

Equations solver categories