x^4-8*x^2+17=0

Simple and best practice solution for x^4-8*x^2+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 x^4-8*x^2+17=0 equation:


Simplifying
x4 + -8x2 + 17 = 0

Reorder the terms:
17 + -8x2 + x4 = 0

Solving
17 + -8x2 + x4 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-17' to each side of the equation.
17 + -8x2 + -17 + x4 = 0 + -17

Reorder the terms:
17 + -17 + -8x2 + x4 = 0 + -17

Combine like terms: 17 + -17 = 0
0 + -8x2 + x4 = 0 + -17
-8x2 + x4 = 0 + -17

Combine like terms: 0 + -17 = -17
-8x2 + x4 = -17

The x term is -8x2.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x2 + 16 + x4 = -17 + 16

Reorder the terms:
16 + -8x2 + x4 = -17 + 16

Combine like terms: -17 + 16 = -1
16 + -8x2 + x4 = -1

Factor a perfect square on the left side:
(x2 + -4)(x2 + -4) = -1

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 9k-2=3k+10 | | 3(5x-1)=2x(3) | | 20=-23x | | 2-3x=7x+12 | | 15+6x=45+8x | | 2(x-3)-3(4x-5)=17-8x | | -2t-7=5t+10 | | 9-6=2 | | 12x=4x+36 | | 2(3x+4)=5x+2 | | 9x-3=6x+6 | | 7.6x-4.9x=48.6 | | 7(3-R)+R=5-2R | | 0.5(-12c+6)=-3(c+4)+10(c-5) | | 2x+6=10x+3 | | 3(23-2b)+3b=48 | | 2x*6=10x*3 | | 5(2x-11)=50x | | 5(4n+6)+2n=8n+7 | | 3(2x+2)=5x+5 | | 8+-5x=10+3x | | -6(-5n-8)+3=171 | | 6(2F-1)=-5(3F-15) | | .6(d+4)-.2=.1(d-6)+.8 | | r^2+9r+19=0 | | 0.2(0.1x+0.3)=-0.8 | | 11m=28+4m | | 4x(x^2-21x+11)=0 | | 3y-3/8=.75 | | 28x+25=35x+18 | | 125-x=5x | | (3m-2)=(3m+3) |

Equations solver categories