f^2-12f-1=0

Simple and best practice solution for f^2-12f-1=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 f^2-12f-1=0 equation:


Simplifying
f2 + -12f + -1 = 0

Reorder the terms:
-1 + -12f + f2 = 0

Solving
-1 + -12f + f2 = 0

Solving for variable 'f'.

Begin completing the square.

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -12f + 1 + f2 = 0 + 1

Reorder the terms:
-1 + 1 + -12f + f2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -12f + f2 = 0 + 1
-12f + f2 = 0 + 1

Combine like terms: 0 + 1 = 1
-12f + f2 = 1

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

Add '36' to each side of the equation.
-12f + 36 + f2 = 1 + 36

Reorder the terms:
36 + -12f + f2 = 1 + 36

Combine like terms: 1 + 36 = 37
36 + -12f + f2 = 37

Factor a perfect square on the left side:
(f + -6)(f + -6) = 37

Calculate the square root of the right side: 6.08276253

Break this problem into two subproblems by setting 
(f + -6) equal to 6.08276253 and -6.08276253.

Subproblem 1

f + -6 = 6.08276253 Simplifying f + -6 = 6.08276253 Reorder the terms: -6 + f = 6.08276253 Solving -6 + f = 6.08276253 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + f = 6.08276253 + 6 Combine like terms: -6 + 6 = 0 0 + f = 6.08276253 + 6 f = 6.08276253 + 6 Combine like terms: 6.08276253 + 6 = 12.08276253 f = 12.08276253 Simplifying f = 12.08276253

Subproblem 2

f + -6 = -6.08276253 Simplifying f + -6 = -6.08276253 Reorder the terms: -6 + f = -6.08276253 Solving -6 + f = -6.08276253 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + f = -6.08276253 + 6 Combine like terms: -6 + 6 = 0 0 + f = -6.08276253 + 6 f = -6.08276253 + 6 Combine like terms: -6.08276253 + 6 = -0.08276253 f = -0.08276253 Simplifying f = -0.08276253

Solution

The solution to the problem is based on the solutions from the subproblems. f = {12.08276253, -0.08276253}

See similar equations:

| 8n+2n+6=36 | | 244=w+187 | | -3h-8(4+9h)= | | h^2+2h=27 | | 6y-12=16 | | -u+244=56 | | 9x^2+4y^2+8y-32=0 | | 5x-3y/4=26 | | 2n^3+4n^2-7=-n^3+8n-9 | | 3.7+0.7x=0.2 | | s^2-6s-29=0 | | 63-6y=y | | 7(x-6)=x(10-2) | | -3+xy=2 | | 16x=-6y-3 | | -x-2(5-7x)=29 | | 494.70=34(x+2.55) | | m^2-26m=-3 | | 6cos(x)=1 | | 3c-5=15+3 | | 4.1=5x+3.1 | | 11x+153=9x+51 | | y-3=.5(x-10) | | 5(x-3)=x+25 | | 3.2x+10-6.2x=7 | | y-6=(x+1) | | 8x^2-19=0 | | 1008=6x+18 | | 2x^2-16x=16 | | 7(x-56+4x)+132=1545 | | -4(x+3)=15-x | | 7x+5y=-14 |

Equations solver categories