x^4-8x^2-32=0

Simple and best practice solution for x^4-8x^2-32=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^4-8x^2-32=0 equation:


Simplifying
x4 + -8x2 + -32 = 0

Reorder the terms:
-32 + -8x2 + x4 = 0

Solving
-32 + -8x2 + x4 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '32' to each side of the equation.
-32 + -8x2 + 32 + x4 = 0 + 32

Reorder the terms:
-32 + 32 + -8x2 + x4 = 0 + 32

Combine like terms: -32 + 32 = 0
0 + -8x2 + x4 = 0 + 32
-8x2 + x4 = 0 + 32

Combine like terms: 0 + 32 = 32
-8x2 + x4 = 32

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 = 32 + 16

Reorder the terms:
16 + -8x2 + x4 = 32 + 16

Combine like terms: 32 + 16 = 48
16 + -8x2 + x4 = 48

Factor a perfect square on the left side:
(x2 + -4)(x2 + -4) = 48

Calculate the square root of the right side: 6.92820323

Break this problem into two subproblems by setting 
(x2 + -4) equal to 6.92820323 and -6.92820323.

Subproblem 1

x2 + -4 = 6.92820323 Simplifying x2 + -4 = 6.92820323 Reorder the terms: -4 + x2 = 6.92820323 Solving -4 + x2 = 6.92820323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x2 = 6.92820323 + 4 Combine like terms: -4 + 4 = 0 0 + x2 = 6.92820323 + 4 x2 = 6.92820323 + 4 Combine like terms: 6.92820323 + 4 = 10.92820323 x2 = 10.92820323 Simplifying x2 = 10.92820323 Take the square root of each side: x = {-3.305783301, 3.305783301}

Subproblem 2

x2 + -4 = -6.92820323 Simplifying x2 + -4 = -6.92820323 Reorder the terms: -4 + x2 = -6.92820323 Solving -4 + x2 = -6.92820323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x2 = -6.92820323 + 4 Combine like terms: -4 + 4 = 0 0 + x2 = -6.92820323 + 4 x2 = -6.92820323 + 4 Combine like terms: -6.92820323 + 4 = -2.92820323 x2 = -2.92820323 Simplifying x2 = -2.92820323 Reorder the terms: 2.92820323 + x2 = -2.92820323 + 2.92820323 Combine like terms: -2.92820323 + 2.92820323 = 0.00000000 2.92820323 + x2 = 0.00000000 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:

| 3+0.1(38-x)=1.8x-(0.4x-3.8) | | -4-3x-x=36 | | 3(8x-4)+9=69 | | 3(z+2)=21 | | 10y+3+6y-2= | | 2x-21=11+4x | | 10(w-5)=50 | | -2x-3+6x=-23 | | 6(b-4)=-18 | | 156=6x | | y=4y+18 | | 14x+21x+28x+7x=360 | | 4x+10+2x=10 | | 14x+21x+28x+7x=180 | | 2(k-2)=0 | | Y+sr=r | | 4A+6+3=17 | | 1+2p=-15 | | 4a+6=17 | | -5+t=98 | | -67+x=49+5x | | 5x-16=(21) | | -7.2x+1.9=15.2-1.5x | | x+(x*.3)=64 | | 4+6x+5x=92 | | 5(3n+2)=9(7n+5)+6 | | 4x-5+2x-1+3x+6=180 | | 2r+9=13 | | -8+5x=-38 | | 0.891(0.7-x)=0.5+x | | 15n+10=63n+45+6 | | p-(-1)=(-14) |

Equations solver categories