y^2+12y+36=7

Simple and best practice solution for y^2+12y+36=7 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=7 equation:


Simplifying
y2 + 12y + 36 = 7

Reorder the terms:
36 + 12y + y2 = 7

Solving
36 + 12y + y2 = 7

Solving for variable 'y'.

Reorder the terms:
36 + -7 + 12y + y2 = 7 + -7

Combine like terms: 36 + -7 = 29
29 + 12y + y2 = 7 + -7

Combine like terms: 7 + -7 = 0
29 + 12y + y2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-29' to each side of the equation.
29 + 12y + -29 + y2 = 0 + -29

Reorder the terms:
29 + -29 + 12y + y2 = 0 + -29

Combine like terms: 29 + -29 = 0
0 + 12y + y2 = 0 + -29
12y + y2 = 0 + -29

Combine like terms: 0 + -29 = -29
12y + y2 = -29

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 = -29 + 36

Reorder the terms:
36 + 12y + y2 = -29 + 36

Combine like terms: -29 + 36 = 7
36 + 12y + y2 = 7

Factor a perfect square on the left side:
(y + 6)(y + 6) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(y + 6) equal to 2.645751311 and -2.645751311.

Subproblem 1

y + 6 = 2.645751311 Simplifying y + 6 = 2.645751311 Reorder the terms: 6 + y = 2.645751311 Solving 6 + y = 2.645751311 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 = 2.645751311 + -6 Combine like terms: 6 + -6 = 0 0 + y = 2.645751311 + -6 y = 2.645751311 + -6 Combine like terms: 2.645751311 + -6 = -3.354248689 y = -3.354248689 Simplifying y = -3.354248689

Subproblem 2

y + 6 = -2.645751311 Simplifying y + 6 = -2.645751311 Reorder the terms: 6 + y = -2.645751311 Solving 6 + y = -2.645751311 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 = -2.645751311 + -6 Combine like terms: 6 + -6 = 0 0 + y = -2.645751311 + -6 y = -2.645751311 + -6 Combine like terms: -2.645751311 + -6 = -8.645751311 y = -8.645751311 Simplifying y = -8.645751311

Solution

The solution to the problem is based on the solutions from the subproblems. y = {-3.354248689, -8.645751311}

See similar equations:

| (2x+3)+X=180 | | 1600=0t+16t^2 | | 4w^2-36w+81=0 | | 6.5=t^2-5t+6.25 | | x/4=5/7 | | c+6=2(3c-7) | | x^4+6x^3+9x^2=0 | | 3x+8=4x-21 | | 23=-10+3x | | 5=4a-17 | | 20x^2+43x+21=0 | | 3u=12 | | 16t^2+64t=64 | | 30=12 | | 0.14(4x-5)=152 | | 0.142857(4x-5)=152 | | 16y^2=128 | | 6Y+12=8y-14 | | 64=64t+16t^2 | | 3y+60=9Y-36 | | 0=3x^2+10x+8 | | 6=-2z+3 | | 0=4-4z | | 9x+5(8+8)-6(2x-7)=40whatisx | | 9x+5(8+8)-6(2x-7)=40 | | 2(y-3)-4+2y= | | y^2+8y+55=0 | | 15y=-120 | | 5t^2=2t | | x+y-6xy=0 | | (4x+3)-(-8x+6)= | | 0.7x=1.3-1.2 |

Equations solver categories