y^4+y^2-5=0

Simple and best practice solution for y^4+y^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 y^4+y^2-5=0 equation:


Simplifying
y4 + y2 + -5 = 0

Reorder the terms:
-5 + y2 + y4 = 0

Solving
-5 + y2 + y4 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + y2 + 5 + y4 = 0 + 5

Reorder the terms:
-5 + 5 + y2 + y4 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + y2 + y4 = 0 + 5
y2 + y4 = 0 + 5

Combine like terms: 0 + 5 = 5
y2 + y4 = 5

The y term is y2.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
y2 + 0.25 + y4 = 5 + 0.25

Reorder the terms:
0.25 + y2 + y4 = 5 + 0.25

Combine like terms: 5 + 0.25 = 5.25
0.25 + y2 + y4 = 5.25

Factor a perfect square on the left side:
(y2 + 0.5)(y2 + 0.5) = 5.25

Calculate the square root of the right side: 2.291287847

Break this problem into two subproblems by setting 
(y2 + 0.5) equal to 2.291287847 and -2.291287847.

Subproblem 1

y2 + 0.5 = 2.291287847 Simplifying y2 + 0.5 = 2.291287847 Reorder the terms: 0.5 + y2 = 2.291287847 Solving 0.5 + y2 = 2.291287847 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + y2 = 2.291287847 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + y2 = 2.291287847 + -0.5 y2 = 2.291287847 + -0.5 Combine like terms: 2.291287847 + -0.5 = 1.791287847 y2 = 1.791287847 Simplifying y2 = 1.791287847 Take the square root of each side: y = {-1.338390021, 1.338390021}

Subproblem 2

y2 + 0.5 = -2.291287847 Simplifying y2 + 0.5 = -2.291287847 Reorder the terms: 0.5 + y2 = -2.291287847 Solving 0.5 + y2 = -2.291287847 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + y2 = -2.291287847 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + y2 = -2.291287847 + -0.5 y2 = -2.291287847 + -0.5 Combine like terms: -2.291287847 + -0.5 = -2.791287847 y2 = -2.791287847 Simplifying y2 = -2.791287847 Reorder the terms: 2.791287847 + y2 = -2.791287847 + 2.791287847 Combine like terms: -2.791287847 + 2.791287847 = 0.000000000 2.791287847 + y2 = 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:

| a/6+3=10 | | abs(x^2-4)-abs(9-x^2)=5 | | 50x=25y | | 3y+15=9y-13 | | 3x-4i= | | 4a=2a+q | | 5x^2+2xy+2y^2-2x-2y+1=0 | | 52+2x=x | | 50=16q+4.1 | | 9*9-2y=-37 | | 15=5-2.5x | | -4(5v+7)=31-8v | | 25y+4=59 | | 10h-23=27 | | 11d+4=48 | | 5(2x-4)-4(3x+8)=-50 | | 6-3x=8-x | | 24+9g=-3 | | xy-3x+2y+6=0 | | 20-5x=60 | | y-1/4=1/1/8 | | 8-X=1-0.5X | | 0=-16t^2+600t+14400 | | 16=4(9y-8) | | 2x^2-6x+11+2*sqrt(x^2-3x+5)=25 | | x(x^3+x^2+-9x-3)=44 | | cosx=5 | | 15x-x^2=18 | | 5x-x^2=54 | | x^2+8x-192=0 | | 0=(2x-7)(3x+1) | | 3sin^2(x)-sin(x)-1=0 |

Equations solver categories