(x^4)-81=0

Simple and best practice solution for (x^4)-81=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)-81=0 equation:


Simplifying
(x4) + -81 = 0
x4 + -81 = 0

Reorder the terms:
-81 + x4 = 0

Solving
-81 + x4 = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '81' to each side of the equation.
-81 + 81 + x4 = 0 + 81

Combine like terms: -81 + 81 = 0
0 + x4 = 0 + 81
x4 = 0 + 81

Combine like terms: 0 + 81 = 81
x4 = 81

Simplifying
x4 = 81

Reorder the terms:
-81 + x4 = 81 + -81

Combine like terms: 81 + -81 = 0
-81 + x4 = 0

Factor a difference between two squares.
(9 + x2)(-9 + x2) = 0

Factor a difference between two squares.
(9 + x2)((3 + x)(-3 + x)) = 0

Subproblem 1

Set the factor '(9 + x2)' equal to zero and attempt to solve: Simplifying 9 + x2 = 0 Solving 9 + x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + x2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + x2 = 0 + -9 x2 = 0 + -9 Combine like terms: 0 + -9 = -9 x2 = -9 Simplifying x2 = -9 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 '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Subproblem 3

Set the factor '(-3 + x)' equal to zero and attempt to solve: Simplifying -3 + x = 0 Solving -3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + x = 0 + 3 x = 0 + 3 Combine like terms: 0 + 3 = 3 x = 3 Simplifying x = 3

Solution

x = {-3, 3}

See similar equations:

| (6x+4y-8)dx=(x+y-1)dy | | (x^2-3x)=0 | | 9*(7+x)=81 | | y-3=-2(x+1) | | 4x(x^2-3x)=0 | | 8-2(x-5)=4(2x+12) | | (12i+48i)+(15+21i)= | | 2(x-2)+3=2y-1 | | 4y-4y^9=0 | | (2x^2)+10x+8=0 | | 3x+5=-72 | | y=-2x^2-16x-25 | | 6x1/100 | | X-3(x+2)=0 | | 5(-m-2n)= | | Y=2t+4 | | x*x-4x+5=0 | | 5x+(6-3x)=8(-3x+4) | | (10x+44)=(8x-23) | | 82832+1212=1 | | 2x*x+3x-1=0 | | 26=26-2x | | (2)x*x+3x-1=0 | | Y=3.6+65 | | (5x-37)=(x+4) | | 0.9-1.6=5.2 | | X/20=16/100 | | 8x-11=6x+4 | | 29y=-6+6 | | 20-8y=15+3y | | 20-8y=15+3 | | -5k-2=19 |

Equations solver categories