y^2-12y=36

Simple and best practice solution for y^2-12y=36 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 y^2-12y=36 equation:


Simplifying
y2 + -12y = 36

Reorder the terms:
-12y + y2 = 36

Solving
-12y + y2 = 36

Solving for variable 'y'.

Reorder the terms:
-36 + -12y + y2 = 36 + -36

Combine like terms: 36 + -36 = 0
-36 + -12y + y2 = 0

Begin completing the square.

Move the constant term to the right:

Add '36' to each side of the equation.
-36 + -12y + 36 + y2 = 0 + 36

Reorder the terms:
-36 + 36 + -12y + y2 = 0 + 36

Combine like terms: -36 + 36 = 0
0 + -12y + y2 = 0 + 36
-12y + y2 = 0 + 36

Combine like terms: 0 + 36 = 36
-12y + y2 = 36

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

Add '36' to each side of the equation.
-12y + 36 + y2 = 36 + 36

Reorder the terms:
36 + -12y + y2 = 36 + 36

Combine like terms: 36 + 36 = 72
36 + -12y + y2 = 72

Factor a perfect square on the left side:
(y + -6)(y + -6) = 72

Calculate the square root of the right side: 8.485281374

Break this problem into two subproblems by setting 
(y + -6) equal to 8.485281374 and -8.485281374.

Subproblem 1

y + -6 = 8.485281374 Simplifying y + -6 = 8.485281374 Reorder the terms: -6 + y = 8.485281374 Solving -6 + y = 8.485281374 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + y = 8.485281374 + 6 Combine like terms: -6 + 6 = 0 0 + y = 8.485281374 + 6 y = 8.485281374 + 6 Combine like terms: 8.485281374 + 6 = 14.485281374 y = 14.485281374 Simplifying y = 14.485281374

Subproblem 2

y + -6 = -8.485281374 Simplifying y + -6 = -8.485281374 Reorder the terms: -6 + y = -8.485281374 Solving -6 + y = -8.485281374 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + y = -8.485281374 + 6 Combine like terms: -6 + 6 = 0 0 + y = -8.485281374 + 6 y = -8.485281374 + 6 Combine like terms: -8.485281374 + 6 = -2.485281374 y = -2.485281374 Simplifying y = -2.485281374

Solution

The solution to the problem is based on the solutions from the subproblems. y = {14.485281374, -2.485281374}

See similar equations:

| 46=2-8w-5w | | 17-x=4x-3 | | 60=-6k | | 4x=3x+-1 | | x=4.6+2.3 | | 12(1+14a)+13a=-3(1-12a) | | y+7.71=9.56 | | 800=260+40t*40+50t*50 | | 0=-3x-2 | | 5+2(6x-3)=7 | | (13159+x)+x=120283 | | 4x+3(0)-2=-14 | | 4(0)+3y-2=-14 | | 3x+5(0)-4=-19 | | 3(0)+5y-4=-19 | | 6x^2-42x+60=0 | | 4x^2-39x-400=0 | | -4(2t+3)=-44 | | (6x^2+6)*(5x-2)=0 | | 2x(3y+2)=5y | | 2(f-6)=0 | | Y=6-6(0) | | 8(s-10)=-132 | | -(c-4)=4 | | 2(t+3)=4 | | 6=-8w+2(w+6) | | y=36.9x^2-450x | | 3(4s+5)=87 | | 15x-7=7x-13 | | 3w+2w=30 | | 3(2l+5)=27 | | 88-y=185 |

Equations solver categories