16k^4-81=0

Simple and best practice solution for 16k^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 16k^4-81=0 equation:


Simplifying
16k4 + -81 = 0

Reorder the terms:
-81 + 16k4 = 0

Solving
-81 + 16k4 = 0

Solving for variable 'k'.

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

Add '81' to each side of the equation.
-81 + 81 + 16k4 = 0 + 81

Combine like terms: -81 + 81 = 0
0 + 16k4 = 0 + 81
16k4 = 0 + 81

Combine like terms: 0 + 81 = 81
16k4 = 81

Divide each side by '16'.
k4 = 5.0625

Simplifying
k4 = 5.0625

Reorder the terms:
-5.0625 + k4 = 5.0625 + -5.0625

Combine like terms: 5.0625 + -5.0625 = 0.0000
-5.0625 + k4 = 0.0000

Factor a difference between two squares.
(2.25 + k2)(-2.25 + k2) = 0.0000

Factor a difference between two squares.
(2.25 + k2)((1.5 + k)(-1.5 + k)) = 0.0000

Subproblem 1

Set the factor '(2.25 + k2)' equal to zero and attempt to solve: Simplifying 2.25 + k2 = 0 Solving 2.25 + k2 = 0 Move all terms containing k to the left, all other terms to the right. Add '-2.25' to each side of the equation. 2.25 + -2.25 + k2 = 0 + -2.25 Combine like terms: 2.25 + -2.25 = 0.00 0.00 + k2 = 0 + -2.25 k2 = 0 + -2.25 Combine like terms: 0 + -2.25 = -2.25 k2 = -2.25 Simplifying k2 = -2.25 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 '(1.5 + k)' equal to zero and attempt to solve: Simplifying 1.5 + k = 0 Solving 1.5 + k = 0 Move all terms containing k to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + k = 0 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + k = 0 + -1.5 k = 0 + -1.5 Combine like terms: 0 + -1.5 = -1.5 k = -1.5 Simplifying k = -1.5

Subproblem 3

Set the factor '(-1.5 + k)' equal to zero and attempt to solve: Simplifying -1.5 + k = 0 Solving -1.5 + k = 0 Move all terms containing k to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + k = 0 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + k = 0 + 1.5 k = 0 + 1.5 Combine like terms: 0 + 1.5 = 1.5 k = 1.5 Simplifying k = 1.5

Solution

k = {-1.5, 1.5}

See similar equations:

| 7-8n+3n=11-89 | | 8x+(-8)=48 | | 10*8*3*10= | | x-x-.25x=780 | | 9n-18=-21+8n | | x*x+20x=71 | | 6x+4y+5x= | | xx+20x=71 | | x+20x=71 | | 9(4z-4)= | | 4x+20+52=116 | | 3(c-5)+3=2+c-14 | | 3x+1(x+1)=24 | | 6y-2+52=116 | | 7/3(3w+2)=-21 | | 6y-2=4x+20 | | 3x+7(3x+4)= | | 13-2(2x+1)=1 | | 2-8=A-1+11 | | -16x^2+50=0 | | (8x+14)+(2x-4)=180 | | 7x-3(2-5x)=8x | | 2n^2-16n+23=7 | | 4x^4+12x^2= | | 7x-7=7x-35 | | 7n-150+10n=20n-80-4n | | x(x+4)=196 | | -2x+(-4)=-2x+1 | | x-3x+2x=-3-1+4 | | x^3+3x=14 | | 3x-5+11=17 | | -7q=-37*8-1.6q |

Equations solver categories