2x^8-3x^4-20=0

Simple and best practice solution for 2x^8-3x^4-20=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 2x^8-3x^4-20=0 equation:


Simplifying
2x8 + -3x4 + -20 = 0

Reorder the terms:
-20 + -3x4 + 2x8 = 0

Solving
-20 + -3x4 + 2x8 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -2x4)(4 + -1x4) = 0

Factor a difference between two squares.
(-5 + -2x4)((2 + x2)(2 + -1x2)) = 0

Subproblem 1

Set the factor '(-5 + -2x4)' equal to zero and attempt to solve: Simplifying -5 + -2x4 = 0 Solving -5 + -2x4 = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -2x4 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -2x4 = 0 + 5 -2x4 = 0 + 5 Combine like terms: 0 + 5 = 5 -2x4 = 5 Divide each side by '-2'. x4 = -2.5 Simplifying x4 = -2.5 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(2 + x2)' equal to zero and attempt to solve: Simplifying 2 + x2 = 0 Solving 2 + x2 = 0 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 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x2 = 0 + -2 x2 = 0 + -2 Combine like terms: 0 + -2 = -2 x2 = -2 Simplifying x2 = -2 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 3

Set the factor '(2 + -1x2)' equal to zero and attempt to solve: Simplifying 2 + -1x2 = 0 Solving 2 + -1x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x2 = 0 + -2 -1x2 = 0 + -2 Combine like terms: 0 + -2 = -2 -1x2 = -2 Divide each side by '-1'. x2 = 2 Simplifying x2 = 2 Take the square root of each side: x = {-1.414213562, 1.414213562}

Solution

x = {-1.414213562, 1.414213562}

See similar equations:

| 2(x+8)=7-(x+12) | | 5x=6x-7 | | x+24+x+x=33 | | 5p/p-7 | | x*x+x=33 | | 9x^2-24x+14=0 | | (5x+15)+(1x+20)+(14x-5)=180 | | 81x^2=-54x+91 | | 5(x+2)-2(x+15)=10(x+3) | | (4x-7)^1/2 | | 3(4+y)+y=5 | | 2(y-2)+3(4y-1)=0 | | C=5q+50 | | 4x-8+2X+5=0 | | 5x(3x+3)=0 | | 33+-y+11+33+-3y+y=24 | | x=-2.666666667+0.3333333333(8+3x) | | x^3-9x+20x=0 | | 33-3y+11+33-3y+y=24 | | y=8E-11*2 | | y=8E-11x | | y+y+y+x=33 | | 0.1x+0.5(x+6)=6 | | Y=8cost | | 8x^2+10x=1440 | | b(b+2)= | | 3u^2-u+2=0 | | (7x+14)+(x-12)= | | x^2+4x-16=80 | | 6-7a=-4.5 | | (1/16)x^2-(1/8)x-1 | | 5p*4q= |

Equations solver categories