0=-8+-3y+y^2

Simple and best practice solution for 0=-8+-3y+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 0=-8+-3y+y^2 equation:


Simplifying
0 = -8 + -3y + y2

Solving
0 = -8 + -3y + y2

Solving for variable 'y'.

Combine like terms: 0 + 8 = 8
8 + 3y + -1y2 = -8 + -3y + y2 + 8 + 3y + -1y2

Reorder the terms:
8 + 3y + -1y2 = -8 + 8 + -3y + 3y + y2 + -1y2

Combine like terms: -8 + 8 = 0
8 + 3y + -1y2 = 0 + -3y + 3y + y2 + -1y2
8 + 3y + -1y2 = -3y + 3y + y2 + -1y2

Combine like terms: -3y + 3y = 0
8 + 3y + -1y2 = 0 + y2 + -1y2
8 + 3y + -1y2 = y2 + -1y2

Combine like terms: y2 + -1y2 = 0
8 + 3y + -1y2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-8 + -3y + y2 = 0

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + -3y + 8 + y2 = 0 + 8

Reorder the terms:
-8 + 8 + -3y + y2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -3y + y2 = 0 + 8
-3y + y2 = 0 + 8

Combine like terms: 0 + 8 = 8
-3y + y2 = 8

The y term is -3y.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3y + 2.25 + y2 = 8 + 2.25

Reorder the terms:
2.25 + -3y + y2 = 8 + 2.25

Combine like terms: 8 + 2.25 = 10.25
2.25 + -3y + y2 = 10.25

Factor a perfect square on the left side:
(y + -1.5)(y + -1.5) = 10.25

Calculate the square root of the right side: 3.201562119

Break this problem into two subproblems by setting 
(y + -1.5) equal to 3.201562119 and -3.201562119.

Subproblem 1

y + -1.5 = 3.201562119 Simplifying y + -1.5 = 3.201562119 Reorder the terms: -1.5 + y = 3.201562119 Solving -1.5 + y = 3.201562119 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + y = 3.201562119 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + y = 3.201562119 + 1.5 y = 3.201562119 + 1.5 Combine like terms: 3.201562119 + 1.5 = 4.701562119 y = 4.701562119 Simplifying y = 4.701562119

Subproblem 2

y + -1.5 = -3.201562119 Simplifying y + -1.5 = -3.201562119 Reorder the terms: -1.5 + y = -3.201562119 Solving -1.5 + y = -3.201562119 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + y = -3.201562119 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + y = -3.201562119 + 1.5 y = -3.201562119 + 1.5 Combine like terms: -3.201562119 + 1.5 = -1.701562119 y = -1.701562119 Simplifying y = -1.701562119

Solution

The solution to the problem is based on the solutions from the subproblems. y = {4.701562119, -1.701562119}

See similar equations:

| 2/3*10+4 | | -12x+14=8c-46 | | x+1/3=0 | | 5/10x-60 | | 3x^2-10-26=0 | | 30-7x-x^2=0 | | 3x-(0)=0 | | x/30=0,1 | | 5n-n=13 | | 0=-12+4y+y^2 | | 0.30(x-100000)=350 | | 0.30(x-100000)=700 | | x/6+8=16 | | -4x^2+49=0 | | =(m+2)*(3m+1) | | =m*(m+3) | | 4x^2+36x-160=0 | | 4x^2+36-160=0 | | 3x+9=103 | | 0.50(x-500000)=2000000 | | =-10-6*Q+5.5Q^2-2*Q^3+0.25*Q^4 | | 2-x=-5x-3 | | 2(3x+4)=5x-10+7x | | 0.50(x-500000)=750000 | | -3/7x-9/8 | | 10+3x=2(3x+4x)+5 | | 4n-1=15 | | -11r-3=-24 | | 5n-2=13 | | 8x^2-33x+12=0 | | 5(x-4)=9x+8 | | 3x+3=2x-13 |

Equations solver categories