x^4-32x^2+128=0

Simple and best practice solution for x^4-32x^2+128=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^4-32x^2+128=0 equation:


Simplifying
x4 + -32x2 + 128 = 0

Reorder the terms:
128 + -32x2 + x4 = 0

Solving
128 + -32x2 + x4 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-128' to each side of the equation.
128 + -32x2 + -128 + x4 = 0 + -128

Reorder the terms:
128 + -128 + -32x2 + x4 = 0 + -128

Combine like terms: 128 + -128 = 0
0 + -32x2 + x4 = 0 + -128
-32x2 + x4 = 0 + -128

Combine like terms: 0 + -128 = -128
-32x2 + x4 = -128

The x term is -32x2.  Take half its coefficient (-16).
Square it (256) and add it to both sides.

Add '256' to each side of the equation.
-32x2 + 256 + x4 = -128 + 256

Reorder the terms:
256 + -32x2 + x4 = -128 + 256

Combine like terms: -128 + 256 = 128
256 + -32x2 + x4 = 128

Factor a perfect square on the left side:
(x2 + -16)(x2 + -16) = 128

Calculate the square root of the right side: 11.313708499

Break this problem into two subproblems by setting 
(x2 + -16) equal to 11.313708499 and -11.313708499.

Subproblem 1

x2 + -16 = 11.313708499 Simplifying x2 + -16 = 11.313708499 Reorder the terms: -16 + x2 = 11.313708499 Solving -16 + x2 = 11.313708499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x2 = 11.313708499 + 16 Combine like terms: -16 + 16 = 0 0 + x2 = 11.313708499 + 16 x2 = 11.313708499 + 16 Combine like terms: 11.313708499 + 16 = 27.313708499 x2 = 27.313708499 Simplifying x2 = 27.313708499 Take the square root of each side: x = {-5.22625186, 5.22625186}

Subproblem 2

x2 + -16 = -11.313708499 Simplifying x2 + -16 = -11.313708499 Reorder the terms: -16 + x2 = -11.313708499 Solving -16 + x2 = -11.313708499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x2 = -11.313708499 + 16 Combine like terms: -16 + 16 = 0 0 + x2 = -11.313708499 + 16 x2 = -11.313708499 + 16 Combine like terms: -11.313708499 + 16 = 4.686291501 x2 = 4.686291501 Simplifying x2 = 4.686291501 Take the square root of each side: x = {-2.164784401, 2.164784401}

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-5.22625186, 5.22625186, -2.164784401, 2.164784401}

See similar equations:

| 4p-9=-8 | | 8-3n=8(1*8n) | | x^2+x^2+x+1=36 | | -41p-18=0 | | 15n^2+n-2=0 | | -4+5x=18x+13x | | 6x^2+21x-5=0 | | 0.5p=-23 | | -6+3x=x-28 | | (15*x)+7=(15*x)+7 | | 2x-1+25=3x-6 | | -6+[(8-17)-(-1-4)]= | | 0.3=0.5p | | 9=-4x+5x+7 | | 4x+12x=-48 | | 6(y-7)+3=9 | | 6(1+8n)=31 | | 9(10a+3)= | | 40x+24x=544x | | 180=35+35+x | | x^2y=13.1 | | 7(x-9)+4=4x+3(x-5) | | -.50*x+1=-x+8 | | X^2y=13 | | 35y+3000=82 | | (6*x)+13=(6*x)+14 | | 14x-13+8x+5=180 | | 5n+-11=24 | | 5x^2+8=413 | | 2.3y+1.2=10.4 | | (3*x)+29=4x | | 4xy-3xy-Xy= |

Equations solver categories