w^4-81=0

Simple and best practice solution for w^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 w^4-81=0 equation:


Simplifying
w4 + -81 = 0

Reorder the terms:
-81 + w4 = 0

Solving
-81 + w4 = 0

Solving for variable 'w'.

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

Add '81' to each side of the equation.
-81 + 81 + w4 = 0 + 81

Combine like terms: -81 + 81 = 0
0 + w4 = 0 + 81
w4 = 0 + 81

Combine like terms: 0 + 81 = 81
w4 = 81

Simplifying
w4 = 81

Reorder the terms:
-81 + w4 = 81 + -81

Combine like terms: 81 + -81 = 0
-81 + w4 = 0

Factor a difference between two squares.
(9 + w2)(-9 + w2) = 0

Factor a difference between two squares.
(9 + w2)((3 + w)(-3 + w)) = 0

Subproblem 1

Set the factor '(9 + w2)' equal to zero and attempt to solve: Simplifying 9 + w2 = 0 Solving 9 + w2 = 0 Move all terms containing w to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + w2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + w2 = 0 + -9 w2 = 0 + -9 Combine like terms: 0 + -9 = -9 w2 = -9 Simplifying w2 = -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 + w)' equal to zero and attempt to solve: Simplifying 3 + w = 0 Solving 3 + w = 0 Move all terms containing w to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + w = 0 + -3 Combine like terms: 3 + -3 = 0 0 + w = 0 + -3 w = 0 + -3 Combine like terms: 0 + -3 = -3 w = -3 Simplifying w = -3

Subproblem 3

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

Solution

w = {-3, 3}

See similar equations:

| -11x-24=6-9x | | -1-6(2-9d)= | | y=x-v | | -3x^2+6x+24=0 | | 8p^3+64p^2+96p= | | 6x+2+x=1+5x-7 | | y=(3/4)1-2 | | 2(y-4)=5(y-7) | | y=(3/4)-1-2 | | -125-5x=139+7x | | -4(x-2)=-4x+8 | | 9-4(7-2x)= | | 4x^2-24x-220= | | 8=8r-(v+8) | | 3d+8(-d-5)= | | 6+6(2t+1)=3+12t | | 2x-72=97-11x | | 2z^2-4z-30= | | x^2-24x+72=0 | | 2.3y=20.7 | | 4x-4=7x-3 | | -3y-(-15)=24 | | 16x+4x-5y+7y= | | 0=x^4-8x^2+8 | | 3(a+7)-5a=a+12 | | 2(6x+1)=4+(x-5)-2 | | 14.2t-25.2=3.5t+26.8 | | 10m-3m-m= | | 82-4x-x=92 | | x^2+2x^2=15 | | 82-4x-x=82 | | 7x-9=-86 |

Equations solver categories