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

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


Simplifying
x4 + -6x2 + -5 = 0

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

Solving
-5 + -6x2 + x4 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + -6x2 + 5 + x4 = 0 + 5

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

Combine like terms: -5 + 5 = 0
0 + -6x2 + x4 = 0 + 5
-6x2 + x4 = 0 + 5

Combine like terms: 0 + 5 = 5
-6x2 + x4 = 5

The x term is -6x2.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x2 + 9 + x4 = 5 + 9

Reorder the terms:
9 + -6x2 + x4 = 5 + 9

Combine like terms: 5 + 9 = 14
9 + -6x2 + x4 = 14

Factor a perfect square on the left side:
(x2 + -3)(x2 + -3) = 14

Calculate the square root of the right side: 3.741657387

Break this problem into two subproblems by setting 
(x2 + -3) equal to 3.741657387 and -3.741657387.

Subproblem 1

x2 + -3 = 3.741657387 Simplifying x2 + -3 = 3.741657387 Reorder the terms: -3 + x2 = 3.741657387 Solving -3 + x2 = 3.741657387 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x2 = 3.741657387 + 3 Combine like terms: -3 + 3 = 0 0 + x2 = 3.741657387 + 3 x2 = 3.741657387 + 3 Combine like terms: 3.741657387 + 3 = 6.741657387 x2 = 6.741657387 Simplifying x2 = 6.741657387 Take the square root of each side: x = {-2.596470178, 2.596470178}

Subproblem 2

x2 + -3 = -3.741657387 Simplifying x2 + -3 = -3.741657387 Reorder the terms: -3 + x2 = -3.741657387 Solving -3 + x2 = -3.741657387 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x2 = -3.741657387 + 3 Combine like terms: -3 + 3 = 0 0 + x2 = -3.741657387 + 3 x2 = -3.741657387 + 3 Combine like terms: -3.741657387 + 3 = -0.741657387 x2 = -0.741657387 Simplifying x2 = -0.741657387 Reorder the terms: 0.741657387 + x2 = -0.741657387 + 0.741657387 Combine like terms: -0.741657387 + 0.741657387 = 0.000000000 0.741657387 + 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:

| 22x-2=20x+2 | | 16(6+-1t)(3+t)= | | 2(x+34)=2x | | (9t^2-t-2)(4t^2+9t-1)= | | 11x-25=x | | 2(n-6)+5(2n+4)=32 | | z^2+9z-154=0 | | y=3/10x-6 | | 12x=7x-45 | | x^3y+3x^2y^2-10xy^3= | | 12(x-1)=6(2x-1)-6 | | 2x/5-3=-1 | | 4ab-b+2a= | | 6x+2x=7.2 | | 5(x+1)+2=x-3(2x+1) | | x^2+2*x=70 | | 52=2x+1y | | 10x+8=4x-2 | | 28=4Xx | | (6+7i)-(9-3i)= | | 28=4xy | | 2x+7(x-9)=11x | | -2(8x+9)=24 | | [(a-b)^-3/(ab^4)]^-3 | | 7y-9=16-3y | | 3x+7=9-5x | | 2(3c+4)=26 | | 2=w+6 | | y=3/8x-32 | | 8y+2=5y+11 | | x(x+2)=x+x+2+14 | | 13+6x=1.3 |

Equations solver categories