65=25-10y+y^2

Simple and best practice solution for 65=25-10y+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 65=25-10y+y^2 equation:


Simplifying
65 = 25 + -10y + y2

Solving
65 = 25 + -10y + y2

Solving for variable 'y'.

Combine like terms: 65 + -25 = 40
40 + 10y + -1y2 = 25 + -10y + y2 + -25 + 10y + -1y2

Reorder the terms:
40 + 10y + -1y2 = 25 + -25 + -10y + 10y + y2 + -1y2

Combine like terms: 25 + -25 = 0
40 + 10y + -1y2 = 0 + -10y + 10y + y2 + -1y2
40 + 10y + -1y2 = -10y + 10y + y2 + -1y2

Combine like terms: -10y + 10y = 0
40 + 10y + -1y2 = 0 + y2 + -1y2
40 + 10y + -1y2 = y2 + -1y2

Combine like terms: y2 + -1y2 = 0
40 + 10y + -1y2 = 0

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

Divide each side by '-1'.
-40 + -10y + y2 = 0

Move the constant term to the right:

Add '40' to each side of the equation.
-40 + -10y + 40 + y2 = 0 + 40

Reorder the terms:
-40 + 40 + -10y + y2 = 0 + 40

Combine like terms: -40 + 40 = 0
0 + -10y + y2 = 0 + 40
-10y + y2 = 0 + 40

Combine like terms: 0 + 40 = 40
-10y + y2 = 40

The y term is -10y.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10y + 25 + y2 = 40 + 25

Reorder the terms:
25 + -10y + y2 = 40 + 25

Combine like terms: 40 + 25 = 65
25 + -10y + y2 = 65

Factor a perfect square on the left side:
(y + -5)(y + -5) = 65

Calculate the square root of the right side: 8.062257748

Break this problem into two subproblems by setting 
(y + -5) equal to 8.062257748 and -8.062257748.

Subproblem 1

y + -5 = 8.062257748 Simplifying y + -5 = 8.062257748 Reorder the terms: -5 + y = 8.062257748 Solving -5 + y = 8.062257748 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + y = 8.062257748 + 5 Combine like terms: -5 + 5 = 0 0 + y = 8.062257748 + 5 y = 8.062257748 + 5 Combine like terms: 8.062257748 + 5 = 13.062257748 y = 13.062257748 Simplifying y = 13.062257748

Subproblem 2

y + -5 = -8.062257748 Simplifying y + -5 = -8.062257748 Reorder the terms: -5 + y = -8.062257748 Solving -5 + y = -8.062257748 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + y = -8.062257748 + 5 Combine like terms: -5 + 5 = 0 0 + y = -8.062257748 + 5 y = -8.062257748 + 5 Combine like terms: -8.062257748 + 5 = -3.062257748 y = -3.062257748 Simplifying y = -3.062257748

Solution

The solution to the problem is based on the solutions from the subproblems. y = {13.062257748, -3.062257748}

See similar equations:

| 1250=80x^3 | | 3w-3x-y+3w+16x-4y= | | -2-5(4z-2)=3(-9z+3)-9 | | -6(36-10x)+8=32 | | 0.7x+4.6=7.3-0.2 | | 10x-3y+10w-2y-4w+3x= | | -2-5(4z-2)=(-9z+3)-9 | | 15t-3t^2-18=0 | | .1169563*.4345*24*30= | | (5c+4)(c-4)= | | .1169563*.4345*24= | | 10-3x=26-5x | | 3w+6y+6x+7x-11y+4w= | | .1169563*.4345= | | 4x-7.6=24.6 | | 7b-5=9+3b | | 6+25x=20x+18 | | 12x+13=8x+13 | | 8-(-15)+(-15)= | | 5n^2-19n=30 | | ln(y)=9.8+0.56ln(30) | | 44x+6=2(2x+43) | | 5y-[-(2-3y)+4]=-9y-[-(2+4y)-8]+2 | | 2w+9x+14y+4w+4x-9y= | | ln(y)=9.8+0.56ln(x) | | 5(2x+1)-3x=5x+9 | | 13-3x/6 | | 9(x+1)+7x=45353 | | 26.5=42 | | 3(2y+1)-5(y-1)= | | x/6=6/18 | | w^2=8(w-3) |

Equations solver categories