y^2+12y-16=0

Simple and best practice solution for y^2+12y-16=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 y^2+12y-16=0 equation:


Simplifying
y2 + 12y + -16 = 0

Reorder the terms:
-16 + 12y + y2 = 0

Solving
-16 + 12y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '16' to each side of the equation.
-16 + 12y + 16 + y2 = 0 + 16

Reorder the terms:
-16 + 16 + 12y + y2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 12y + y2 = 0 + 16
12y + y2 = 0 + 16

Combine like terms: 0 + 16 = 16
12y + y2 = 16

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 = 16 + 36

Reorder the terms:
36 + 12y + y2 = 16 + 36

Combine like terms: 16 + 36 = 52
36 + 12y + y2 = 52

Factor a perfect square on the left side:
(y + 6)(y + 6) = 52

Calculate the square root of the right side: 7.211102551

Break this problem into two subproblems by setting 
(y + 6) equal to 7.211102551 and -7.211102551.

Subproblem 1

y + 6 = 7.211102551 Simplifying y + 6 = 7.211102551 Reorder the terms: 6 + y = 7.211102551 Solving 6 + y = 7.211102551 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 = 7.211102551 + -6 Combine like terms: 6 + -6 = 0 0 + y = 7.211102551 + -6 y = 7.211102551 + -6 Combine like terms: 7.211102551 + -6 = 1.211102551 y = 1.211102551 Simplifying y = 1.211102551

Subproblem 2

y + 6 = -7.211102551 Simplifying y + 6 = -7.211102551 Reorder the terms: 6 + y = -7.211102551 Solving 6 + y = -7.211102551 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 = -7.211102551 + -6 Combine like terms: 6 + -6 = 0 0 + y = -7.211102551 + -6 y = -7.211102551 + -6 Combine like terms: -7.211102551 + -6 = -13.211102551 y = -13.211102551 Simplifying y = -13.211102551

Solution

The solution to the problem is based on the solutions from the subproblems. y = {1.211102551, -13.211102551}

See similar equations:

| 32x^2+120x+144=0 | | 14-13p=-17p-5 | | 1+6m=-5m | | y-19=39 | | 73(x-11)=180 | | 28+11n=36+7n | | -10+2f=-4f+8 | | 4x-142=-8x+98 | | -2(x+3)=a(x)-3 | | x*.5=(x-2)*.75 | | 2b-4b=5 | | 31-5h=-36h-32 | | 9+x-4x+9=36-12 | | x^3+2x^2=160+32 | | -6b+6(7+7b)=-1-7b | | 2(cx+12)=3(cx+8) | | 3x-28=.5x+12 | | 23+12x=68+7x | | -29.5=5.5+8(1x-8.5) | | 10b+y=8b+4 | | -3x-4=3x-16 | | 3x^2+36x+15=0 | | 10z-5y=15 | | 2x-5(x-2)=5+2x-15 | | -0.003x^2+x+166.6666667=0 | | .75-1.5=x | | 9-3(2w+1)-5w=4 | | 5(x-7)+7x=13+3(x-4) | | 3x-13=11+x | | -4x-107=-10x+42 | | .5(x+2)=.75(x-2) | | 2(x-2)+5=14 |

Equations solver categories