k^2=-8k+14

Simple and best practice solution for k^2=-8k+14 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 k^2=-8k+14 equation:


Simplifying
k2 = -8k + 14

Reorder the terms:
k2 = 14 + -8k

Solving
k2 = 14 + -8k

Solving for variable 'k'.

Reorder the terms:
-14 + 8k + k2 = 14 + -8k + -14 + 8k

Reorder the terms:
-14 + 8k + k2 = 14 + -14 + -8k + 8k

Combine like terms: 14 + -14 = 0
-14 + 8k + k2 = 0 + -8k + 8k
-14 + 8k + k2 = -8k + 8k

Combine like terms: -8k + 8k = 0
-14 + 8k + k2 = 0

Begin completing the square.

Move the constant term to the right:

Add '14' to each side of the equation.
-14 + 8k + 14 + k2 = 0 + 14

Reorder the terms:
-14 + 14 + 8k + k2 = 0 + 14

Combine like terms: -14 + 14 = 0
0 + 8k + k2 = 0 + 14
8k + k2 = 0 + 14

Combine like terms: 0 + 14 = 14
8k + k2 = 14

The k term is 8k.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8k + 16 + k2 = 14 + 16

Reorder the terms:
16 + 8k + k2 = 14 + 16

Combine like terms: 14 + 16 = 30
16 + 8k + k2 = 30

Factor a perfect square on the left side:
(k + 4)(k + 4) = 30

Calculate the square root of the right side: 5.477225575

Break this problem into two subproblems by setting 
(k + 4) equal to 5.477225575 and -5.477225575.

Subproblem 1

k + 4 = 5.477225575 Simplifying k + 4 = 5.477225575 Reorder the terms: 4 + k = 5.477225575 Solving 4 + k = 5.477225575 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + k = 5.477225575 + -4 Combine like terms: 4 + -4 = 0 0 + k = 5.477225575 + -4 k = 5.477225575 + -4 Combine like terms: 5.477225575 + -4 = 1.477225575 k = 1.477225575 Simplifying k = 1.477225575

Subproblem 2

k + 4 = -5.477225575 Simplifying k + 4 = -5.477225575 Reorder the terms: 4 + k = -5.477225575 Solving 4 + k = -5.477225575 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + k = -5.477225575 + -4 Combine like terms: 4 + -4 = 0 0 + k = -5.477225575 + -4 k = -5.477225575 + -4 Combine like terms: -5.477225575 + -4 = -9.477225575 k = -9.477225575 Simplifying k = -9.477225575

Solution

The solution to the problem is based on the solutions from the subproblems. k = {1.477225575, -9.477225575}

See similar equations:

| 5(x^2+3y^2)-y(x^2+5y)=0 | | 4x+58=360 | | 6/15=a.4 | | -17h+21=-744 | | 20b=16 | | 7.25-4.36/25-8 | | 13/3/7 | | 4n-(-5)=23 | | 12=22+5u | | 13/1/7 | | -5(7x+10)=-190 | | f(x)=5x-18 | | (x+15)+43+3x=360 | | 98=-8a+3(6+6a) | | sr+t=us+v | | 1_-5/4y | | 3x+4y+2x+5y-4x=0 | | x/12-2/3=5/6 | | 12x+21=15x+15 | | 2(8+4x)=-64 | | rs+t=us+vfors | | m/9.8=20.8 | | 5v-3(6v-5)=(-76) | | 2x+5y-z=-35 | | 5(x-8)-7x=-30 | | rs+t=us+v | | 15.99x+9.99=100 | | -3(4x+-2y)-2(x+3y)-2(2x+6y)=0 | | -2-(9+10n)= | | 22-7n=-5(2n-8) | | kx+3y=5 | | 2x+5=4x+(-5) |

Equations solver categories