a^2-12a-12=0

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


Simplifying
a2 + -12a + -12 = 0

Reorder the terms:
-12 + -12a + a2 = 0

Solving
-12 + -12a + a2 = 0

Solving for variable 'a'.

Begin completing the square.

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + -12a + 12 + a2 = 0 + 12

Reorder the terms:
-12 + 12 + -12a + a2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -12a + a2 = 0 + 12
-12a + a2 = 0 + 12

Combine like terms: 0 + 12 = 12
-12a + a2 = 12

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

Add '36' to each side of the equation.
-12a + 36 + a2 = 12 + 36

Reorder the terms:
36 + -12a + a2 = 12 + 36

Combine like terms: 12 + 36 = 48
36 + -12a + a2 = 48

Factor a perfect square on the left side:
(a + -6)(a + -6) = 48

Calculate the square root of the right side: 6.92820323

Break this problem into two subproblems by setting 
(a + -6) equal to 6.92820323 and -6.92820323.

Subproblem 1

a + -6 = 6.92820323 Simplifying a + -6 = 6.92820323 Reorder the terms: -6 + a = 6.92820323 Solving -6 + a = 6.92820323 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + a = 6.92820323 + 6 Combine like terms: -6 + 6 = 0 0 + a = 6.92820323 + 6 a = 6.92820323 + 6 Combine like terms: 6.92820323 + 6 = 12.92820323 a = 12.92820323 Simplifying a = 12.92820323

Subproblem 2

a + -6 = -6.92820323 Simplifying a + -6 = -6.92820323 Reorder the terms: -6 + a = -6.92820323 Solving -6 + a = -6.92820323 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + a = -6.92820323 + 6 Combine like terms: -6 + 6 = 0 0 + a = -6.92820323 + 6 a = -6.92820323 + 6 Combine like terms: -6.92820323 + 6 = -0.92820323 a = -0.92820323 Simplifying a = -0.92820323

Solution

The solution to the problem is based on the solutions from the subproblems. a = {12.92820323, -0.92820323}

See similar equations:

| y^2-8y+41=0 | | 4(5-w)/3=-w | | 8z-6z=1 | | 2x^2-2x-48=X^2 | | -2(x-5)=6x+3 | | 2(3z-1)=3(z+2) | | y^2-6y+34=0 | | 8x+2=10x-8 | | 2y+1-17=.5 | | -7-9=2w+2w | | -8=3x-9 | | -4(x+3)=2x-3 | | 3x+96=4(5x+7) | | x+11=2x-5x | | (x^3)-(9x^2)-4=0 | | 5n=-45 | | 126=.7(200+x) | | 15n+22=-7m+18 | | 8x-2x=0 | | 2(4x-3)-8=4x+2x | | 3(z-6)=2z-2 | | 3(x-6)=21 | | 2x^2-2x+1=49 | | 3f(3)= | | 3-8(7-5n)=0 | | 5x+4=8x+(16) | | 5z+12=3z | | -6-5x=-6-6x | | -7=x-4x | | 3f(-2)= | | 2/3*-2=0 | | -(2+7b)-6(b-4)= |

Equations solver categories