x^4+4x^2-100=0

Simple and best practice solution for x^4+4x^2-100=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+4x^2-100=0 equation:


Simplifying
x4 + 4x2 + -100 = 0

Reorder the terms:
-100 + 4x2 + x4 = 0

Solving
-100 + 4x2 + x4 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '100' to each side of the equation.
-100 + 4x2 + 100 + x4 = 0 + 100

Reorder the terms:
-100 + 100 + 4x2 + x4 = 0 + 100

Combine like terms: -100 + 100 = 0
0 + 4x2 + x4 = 0 + 100
4x2 + x4 = 0 + 100

Combine like terms: 0 + 100 = 100
4x2 + x4 = 100

The x term is 4x2.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x2 + 4 + x4 = 100 + 4

Reorder the terms:
4 + 4x2 + x4 = 100 + 4

Combine like terms: 100 + 4 = 104
4 + 4x2 + x4 = 104

Factor a perfect square on the left side:
(x2 + 2)(x2 + 2) = 104

Calculate the square root of the right side: 10.198039027

Break this problem into two subproblems by setting 
(x2 + 2) equal to 10.198039027 and -10.198039027.

Subproblem 1

x2 + 2 = 10.198039027 Simplifying x2 + 2 = 10.198039027 Reorder the terms: 2 + x2 = 10.198039027 Solving 2 + x2 = 10.198039027 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x2 = 10.198039027 + -2 Combine like terms: 2 + -2 = 0 0 + x2 = 10.198039027 + -2 x2 = 10.198039027 + -2 Combine like terms: 10.198039027 + -2 = 8.198039027 x2 = 8.198039027 Simplifying x2 = 8.198039027 Take the square root of each side: x = {-2.863221791, 2.863221791}

Subproblem 2

x2 + 2 = -10.198039027 Simplifying x2 + 2 = -10.198039027 Reorder the terms: 2 + x2 = -10.198039027 Solving 2 + x2 = -10.198039027 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x2 = -10.198039027 + -2 Combine like terms: 2 + -2 = 0 0 + x2 = -10.198039027 + -2 x2 = -10.198039027 + -2 Combine like terms: -10.198039027 + -2 = -12.198039027 x2 = -12.198039027 Simplifying x2 = -12.198039027 Reorder the terms: 12.198039027 + x2 = -12.198039027 + 12.198039027 Combine like terms: -12.198039027 + 12.198039027 = 0.000000000 12.198039027 + x2 = 0.000000000 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:

| 6t-80=-5 | | 107-6x=2x+19 | | 4s^2+4s-15=0 | | 9a+15=-3 | | -4-6x=8-8x | | 3p+-2p=25 | | 8x-x^2=15 | | y^3-14y^2+45y=0 | | 8a-15-6a=85-3a | | 5m=-15+2m | | y=123x | | 18x+12=9x+36 | | -9+2k=-25 | | 9-5=x | | 18=4h+2 | | 4x^2-9x+1=0 | | 23y+12x+3=0 | | 132-6x=4x+12 | | 5-x=-3 | | 8x^2+24x=-4x^2+15 | | x^2+18x+29=0 | | 10+8x=38+x | | x^2+27=0 | | 5x^3+10x^2+5x+10=0 | | 4x+28=14x-92 | | -6x-3x+2=-5x+9x+1 | | 6x+3=2x-7 | | 134=6x+2(4x-17) | | 4(2)+3=15-2(2) | | x^2+14=10x | | 4a+3=15-2a | | 4x+2x-3=-6x+5+x |

Equations solver categories