x^4-10x^2+40=0

Simple and best practice solution for x^4-10x^2+40=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^4-10x^2+40=0 equation:


Simplifying
x4 + -10x2 + 40 = 0

Reorder the terms:
40 + -10x2 + x4 = 0

Solving
40 + -10x2 + x4 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-40' to each side of the equation.
40 + -10x2 + -40 + x4 = 0 + -40

Reorder the terms:
40 + -40 + -10x2 + x4 = 0 + -40

Combine like terms: 40 + -40 = 0
0 + -10x2 + x4 = 0 + -40
-10x2 + x4 = 0 + -40

Combine like terms: 0 + -40 = -40
-10x2 + x4 = -40

The x term is -10x2.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x2 + 25 + x4 = -40 + 25

Reorder the terms:
25 + -10x2 + x4 = -40 + 25

Combine like terms: -40 + 25 = -15
25 + -10x2 + x4 = -15

Factor a perfect square on the left side:
(x2 + -5)(x2 + -5) = -15

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| U-3/u-2=4/u+4 | | 59x=-2-1+3 | | v+5/6v-1/6=(3/8v+1/4) | | -6(n+2)+13=-3n-8 | | 5g+11=-3 | | -2x+10-4=6 | | 2x^3+27=0 | | 2/3x-1/4+4/3x+3/4=6 | | 2(5c-1)-5=(8c+5) | | 4-1/2d=10 | | 3x+2x=5+3x | | N+2n=30 | | 6x+4x=74 | | 4.0=8.4/X | | 6(a-6)=48 | | a^3x-9ax^3=0 | | (p-6)(p-7)=0 | | 3x+2x=5+3 | | 3(d-4)=15 | | 8=4c-4 | | 4x+7,x=6 | | 6r+6=21r+9 | | y=2140x-53500 | | 47=11+12W | | 3/4+10=190 | | 8y+5x-3y+7-2x= | | 2x-5=4x-1+5 | | log[9]x=log[9]5+log[9]6-log[9]3 | | -5(1+2w)=20 | | 4x-16+6=2x+-6+2x | | 2-4x=-62 | | 1/2x-5+2x+2=10 |

Equations solver categories