y^2+6*y=2

Simple and best practice solution for y^2+6*y=2 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+6*y=2 equation:


Simplifying
y2 + 6y = 2

Reorder the terms:
6y + y2 = 2

Solving
6y + y2 = 2

Solving for variable 'y'.

Reorder the terms:
-2 + 6y + y2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + 6y + y2 = 0

Begin completing the square.

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + 6y + 2 + y2 = 0 + 2

Reorder the terms:
-2 + 2 + 6y + y2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 6y + y2 = 0 + 2
6y + y2 = 0 + 2

Combine like terms: 0 + 2 = 2
6y + y2 = 2

The y term is 6y.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6y + 9 + y2 = 2 + 9

Reorder the terms:
9 + 6y + y2 = 2 + 9

Combine like terms: 2 + 9 = 11
9 + 6y + y2 = 11

Factor a perfect square on the left side:
(y + 3)(y + 3) = 11

Calculate the square root of the right side: 3.31662479

Break this problem into two subproblems by setting 
(y + 3) equal to 3.31662479 and -3.31662479.

Subproblem 1

y + 3 = 3.31662479 Simplifying y + 3 = 3.31662479 Reorder the terms: 3 + y = 3.31662479 Solving 3 + y = 3.31662479 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + y = 3.31662479 + -3 Combine like terms: 3 + -3 = 0 0 + y = 3.31662479 + -3 y = 3.31662479 + -3 Combine like terms: 3.31662479 + -3 = 0.31662479 y = 0.31662479 Simplifying y = 0.31662479

Subproblem 2

y + 3 = -3.31662479 Simplifying y + 3 = -3.31662479 Reorder the terms: 3 + y = -3.31662479 Solving 3 + y = -3.31662479 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + y = -3.31662479 + -3 Combine like terms: 3 + -3 = 0 0 + y = -3.31662479 + -3 y = -3.31662479 + -3 Combine like terms: -3.31662479 + -3 = -6.31662479 y = -6.31662479 Simplifying y = -6.31662479

Solution

The solution to the problem is based on the solutions from the subproblems. y = {0.31662479, -6.31662479}

See similar equations:

| z^2+4iz+6*(2-5i)=0 | | 5x+6=-43-6 | | 4t-52= | | 3x/4-5/2x^2 | | 8x+x*x=0 | | X+15=3y | | 9-11/4-6 | | 12.80+24x=2240 | | 18z^2/-45z | | 2x-3y+az=5 | | f(x)=4x^2+24x+3 | | 5x+9x=0 | | 48b= | | 7x-13=6x-6 | | log(-x)*25=2 | | 3x+5*-5x-9=-23 | | 3t^3-9t+12=0 | | (2m+4)+(m+2)= | | X=4.35-1.5x | | 25x^2+y^2+50x=0 | | 2x4/3= | | -3x+3*5=3 | | d+7=45 | | X=1.5(2.9-x) | | x=90+6y | | .16666666666666=.285714285714285714+x | | 6(-5x+35)-x+7=0 | | 6d+7=2d+11 | | (n/2)-(2n/16)=(3/8) | | Sqrt(5p+5)=sqrt(6p+3) | | x+4=(5x-5) | | 5(x+13)=160 |

Equations solver categories