y^2-12y+8=

Simple and best practice solution for y^2-12y+8= 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+8= equation:


Simplifying
y2 + -12y + 8 = 0

Reorder the terms:
8 + -12y + y2 = 0

Solving
8 + -12y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -12y + -8 + y2 = 0 + -8

Reorder the terms:
8 + -8 + -12y + y2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -12y + y2 = 0 + -8
-12y + y2 = 0 + -8

Combine like terms: 0 + -8 = -8
-12y + y2 = -8

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 = -8 + 36

Reorder the terms:
36 + -12y + y2 = -8 + 36

Combine like terms: -8 + 36 = 28
36 + -12y + y2 = 28

Factor a perfect square on the left side:
(y + -6)(y + -6) = 28

Calculate the square root of the right side: 5.291502622

Break this problem into two subproblems by setting 
(y + -6) equal to 5.291502622 and -5.291502622.

Subproblem 1

y + -6 = 5.291502622 Simplifying y + -6 = 5.291502622 Reorder the terms: -6 + y = 5.291502622 Solving -6 + y = 5.291502622 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 = 5.291502622 + 6 Combine like terms: -6 + 6 = 0 0 + y = 5.291502622 + 6 y = 5.291502622 + 6 Combine like terms: 5.291502622 + 6 = 11.291502622 y = 11.291502622 Simplifying y = 11.291502622

Subproblem 2

y + -6 = -5.291502622 Simplifying y + -6 = -5.291502622 Reorder the terms: -6 + y = -5.291502622 Solving -6 + y = -5.291502622 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 = -5.291502622 + 6 Combine like terms: -6 + 6 = 0 0 + y = -5.291502622 + 6 y = -5.291502622 + 6 Combine like terms: -5.291502622 + 6 = 0.708497378 y = 0.708497378 Simplifying y = 0.708497378

Solution

The solution to the problem is based on the solutions from the subproblems. y = {11.291502622, 0.708497378}

See similar equations:

| 4x-2(x-2)-8=0 | | 5x+3y=82 | | 2-x=4-x^2 | | 90*10x-20= | | ((x*0.10)(0.2)+(x*0.10))+78=x | | 7*6-3+5=26 | | 1/3(18-6x | | x^3+x^2*y=180 | | B^2+5b-35=36 | | Cosx=6/15 | | ((x*0.07)(0.2)+(x*0.07))+78=x | | x^3+x^2+y=180 | | 14n^2+19n=-6 | | ((x*0.09)(0.2)+(x*0.09))+78=x | | ((x*0.06)(0.2)+(x*0.06))+78=x | | ((x*0.08)(0.2)+(x*0.08))+78=x | | (5+4x)(5+4x)=0 | | 3x^2-19x-48=-8 | | 13/40 | | (24-.5x^2)-14x=0 | | 4(2x-5)+(2x-6)=72 | | ((x*0.11)(0.2)+(x*0.11))+78=x | | ((x*0.09)(0.2)+(x*0.12))+78=x | | ((x*0.11)(0.2)+(x*0.12))+78=x | | 4x+7=52 | | 3k^2+19k-14=0 | | ((x*0.12)(0.2)+(x*0.12))+78=x | | 9x+27=81 | | -16x+3=-24+6x | | y+0.24y= | | ((x*0.13)(0.2)+(x*0.13))+78=x | | 0.5x-0.8x+2=5 |

Equations solver categories