b^2-12b-12=5

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


Simplifying
b2 + -12b + -12 = 5

Reorder the terms:
-12 + -12b + b2 = 5

Solving
-12 + -12b + b2 = 5

Solving for variable 'b'.

Reorder the terms:
-12 + -5 + -12b + b2 = 5 + -5

Combine like terms: -12 + -5 = -17
-17 + -12b + b2 = 5 + -5

Combine like terms: 5 + -5 = 0
-17 + -12b + b2 = 0

Begin completing the square.

Move the constant term to the right:

Add '17' to each side of the equation.
-17 + -12b + 17 + b2 = 0 + 17

Reorder the terms:
-17 + 17 + -12b + b2 = 0 + 17

Combine like terms: -17 + 17 = 0
0 + -12b + b2 = 0 + 17
-12b + b2 = 0 + 17

Combine like terms: 0 + 17 = 17
-12b + b2 = 17

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

Add '36' to each side of the equation.
-12b + 36 + b2 = 17 + 36

Reorder the terms:
36 + -12b + b2 = 17 + 36

Combine like terms: 17 + 36 = 53
36 + -12b + b2 = 53

Factor a perfect square on the left side:
(b + -6)(b + -6) = 53

Calculate the square root of the right side: 7.280109889

Break this problem into two subproblems by setting 
(b + -6) equal to 7.280109889 and -7.280109889.

Subproblem 1

b + -6 = 7.280109889 Simplifying b + -6 = 7.280109889 Reorder the terms: -6 + b = 7.280109889 Solving -6 + b = 7.280109889 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + b = 7.280109889 + 6 Combine like terms: -6 + 6 = 0 0 + b = 7.280109889 + 6 b = 7.280109889 + 6 Combine like terms: 7.280109889 + 6 = 13.280109889 b = 13.280109889 Simplifying b = 13.280109889

Subproblem 2

b + -6 = -7.280109889 Simplifying b + -6 = -7.280109889 Reorder the terms: -6 + b = -7.280109889 Solving -6 + b = -7.280109889 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + b = -7.280109889 + 6 Combine like terms: -6 + 6 = 0 0 + b = -7.280109889 + 6 b = -7.280109889 + 6 Combine like terms: -7.280109889 + 6 = -1.280109889 b = -1.280109889 Simplifying b = -1.280109889

Solution

The solution to the problem is based on the solutions from the subproblems. b = {13.280109889, -1.280109889}

See similar equations:

| 25m=15m+75 | | 4x-6(2/3x+1)=-6 | | -3m-8=-3/-20 | | 5x-12=21 | | (4y+7y-6)-(3x+2x-6)-(-3x-2)= | | 6+3x=6+3x | | 7r^2+14r-50=6 | | -3=-9-x | | 10x+.05=22 | | 2n-30=14 | | 9x-10=4y-20 | | 4(7x+9)=176 | | px+r=qx+7 | | 2+6(-8n-7)=3-5n | | 2n^2-22n+20=0 | | 15f-17-10f= | | 1.4n=56 | | 7x+9=4(4x-4)-4x | | 2r^2=4+4r | | 2+6(8n-7)=3-5n | | 4(x+8)=3(y+7) | | -6(3k-5)=-96 | | 8(3a+6)=9 | | (.05+x)+10=22 | | 2m-10=20 | | 6n^2-18n-240=0 | | 18p^2+53pr-35r^2=0 | | -3m/8=-3/-20 | | 15=-5n+2n | | 500/10,000 | | -4secx(2-tanx)=0 | | 1.8(3.5x)+1.8(-2.8y)+(-3.5)(2.0x)+(-3.5)(1.5y)= |

Equations solver categories