5x^4-4x^2-6=0

Simple and best practice solution for 5x^4-4x^2-6=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 5x^4-4x^2-6=0 equation:


Simplifying
5x4 + -4x2 + -6 = 0

Reorder the terms:
-6 + -4x2 + 5x4 = 0

Solving
-6 + -4x2 + 5x4 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
5 the coefficient of the squared term: 

Divide each side by '5'.
-1.2 + -0.8x2 + x4 = 0

Move the constant term to the right:

Add '1.2' to each side of the equation.
-1.2 + -0.8x2 + 1.2 + x4 = 0 + 1.2

Reorder the terms:
-1.2 + 1.2 + -0.8x2 + x4 = 0 + 1.2

Combine like terms: -1.2 + 1.2 = 0.0
0.0 + -0.8x2 + x4 = 0 + 1.2
-0.8x2 + x4 = 0 + 1.2

Combine like terms: 0 + 1.2 = 1.2
-0.8x2 + x4 = 1.2

The x term is -0.8x2.  Take half its coefficient (-0.4).
Square it (0.16) and add it to both sides.

Add '0.16' to each side of the equation.
-0.8x2 + 0.16 + x4 = 1.2 + 0.16

Reorder the terms:
0.16 + -0.8x2 + x4 = 1.2 + 0.16

Combine like terms: 1.2 + 0.16 = 1.36
0.16 + -0.8x2 + x4 = 1.36

Factor a perfect square on the left side:
(x2 + -0.4)(x2 + -0.4) = 1.36

Calculate the square root of the right side: 1.166190379

Break this problem into two subproblems by setting 
(x2 + -0.4) equal to 1.166190379 and -1.166190379.

Subproblem 1

x2 + -0.4 = 1.166190379 Simplifying x2 + -0.4 = 1.166190379 Reorder the terms: -0.4 + x2 = 1.166190379 Solving -0.4 + x2 = 1.166190379 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + x2 = 1.166190379 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + x2 = 1.166190379 + 0.4 x2 = 1.166190379 + 0.4 Combine like terms: 1.166190379 + 0.4 = 1.566190379 x2 = 1.566190379 Simplifying x2 = 1.566190379 Take the square root of each side: x = {-1.251475281, 1.251475281}

Subproblem 2

x2 + -0.4 = -1.166190379 Simplifying x2 + -0.4 = -1.166190379 Reorder the terms: -0.4 + x2 = -1.166190379 Solving -0.4 + x2 = -1.166190379 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + x2 = -1.166190379 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + x2 = -1.166190379 + 0.4 x2 = -1.166190379 + 0.4 Combine like terms: -1.166190379 + 0.4 = -0.766190379 x2 = -0.766190379 Simplifying x2 = -0.766190379 Reorder the terms: 0.766190379 + x2 = -0.766190379 + 0.766190379 Combine like terms: -0.766190379 + 0.766190379 = 0.000000000 0.766190379 + 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:

| -14=-4(9f-1) | | 78-6x=21x+18 | | s^2+42s+41=0 | | -3.6l=-7l+34 | | 17+3n=47 | | 6x-7x=5 | | 12-7x=157-42x | | m^2+38m+37=0 | | 15x+4=5x+24 | | 6x-14=4x-4 | | 4(2y-1)+5=3y+1 | | -37+12x=35 | | 8r+7=-4 | | 2s-11=37+8s | | 7t-20=10+t | | X^2+4-27=0 | | 2x^2-x+0.125=0 | | -75p^3+110750p+30228770+10000p^2=0 | | 15x^2-35x=0 | | 4(x-7)=4x-25 | | 2x-8=44 | | 3b=0 | | x=-2x+21 | | 5y-4=3(x+2) | | x+(x+40)+(x-10)=180 | | log[2](3x-1)=5 | | 4x+2=10x-26 | | 28-45x=234 | | 2x^2-x+8=0 | | 2x^3-3x^2-32x=-48 | | 2a^2=-7a-3 | | y^2-2y=24 |

Equations solver categories