n^2-12n=5

Simple and best practice solution for n^2-12n=5 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 n^2-12n=5 equation:


Simplifying
n2 + -12n = 5

Reorder the terms:
-12n + n2 = 5

Solving
-12n + n2 = 5

Solving for variable 'n'.

Reorder the terms:
-5 + -12n + n2 = 5 + -5

Combine like terms: 5 + -5 = 0
-5 + -12n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + -12n + 5 + n2 = 0 + 5

Reorder the terms:
-5 + 5 + -12n + n2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -12n + n2 = 0 + 5
-12n + n2 = 0 + 5

Combine like terms: 0 + 5 = 5
-12n + n2 = 5

The n term is -12n.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12n + 36 + n2 = 5 + 36

Reorder the terms:
36 + -12n + n2 = 5 + 36

Combine like terms: 5 + 36 = 41
36 + -12n + n2 = 41

Factor a perfect square on the left side:
(n + -6)(n + -6) = 41

Calculate the square root of the right side: 6.403124237

Break this problem into two subproblems by setting 
(n + -6) equal to 6.403124237 and -6.403124237.

Subproblem 1

n + -6 = 6.403124237 Simplifying n + -6 = 6.403124237 Reorder the terms: -6 + n = 6.403124237 Solving -6 + n = 6.403124237 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + n = 6.403124237 + 6 Combine like terms: -6 + 6 = 0 0 + n = 6.403124237 + 6 n = 6.403124237 + 6 Combine like terms: 6.403124237 + 6 = 12.403124237 n = 12.403124237 Simplifying n = 12.403124237

Subproblem 2

n + -6 = -6.403124237 Simplifying n + -6 = -6.403124237 Reorder the terms: -6 + n = -6.403124237 Solving -6 + n = -6.403124237 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + n = -6.403124237 + 6 Combine like terms: -6 + 6 = 0 0 + n = -6.403124237 + 6 n = -6.403124237 + 6 Combine like terms: -6.403124237 + 6 = -0.403124237 n = -0.403124237 Simplifying n = -0.403124237

Solution

The solution to the problem is based on the solutions from the subproblems. n = {12.403124237, -0.403124237}

See similar equations:

| 7000=35x^2-3640x+7000 | | (-4x^6)(4x^7)= | | 9x+4(4X)=100 | | 0=-24y-15x | | 3x+2y=900 | | 3x+1=-1-3+4x | | 2+2x=3x-2 | | -3(3i-4)+12=-33 | | 3x+10=-7x+10 | | 2y+8=y+13 | | (3x-1)-(x-4)=9 | | 6y=-3x+8 | | 10w^2-8w= | | x=196.50-.20 | | x=.20*196.50 | | solvexy=3x+1 | | 3/6-2/12 | | -6c+8=-1+3c | | 7/9x=70 | | 12r+2r^2=45 | | (8(x^1/3))^3 | | x^5=1/32 | | 2y-2=24+4-3y | | (8x^1/3)^3 | | x=89-.10 | | -5x+4=7x-68 | | m/4=m-(11/8) | | 9x^2=x+2 | | -4.9t^2+34.3t-58.8=0 | | -7x+1=-9-5x | | 4=8y | | x=.10*89 |

Equations solver categories