y^2-10y-11=1

Simple and best practice solution for y^2-10y-11=1 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^2-10y-11=1 equation:


Simplifying
y2 + -10y + -11 = 1

Reorder the terms:
-11 + -10y + y2 = 1

Solving
-11 + -10y + y2 = 1

Solving for variable 'y'.

Reorder the terms:
-11 + -1 + -10y + y2 = 1 + -1

Combine like terms: -11 + -1 = -12
-12 + -10y + y2 = 1 + -1

Combine like terms: 1 + -1 = 0
-12 + -10y + y2 = 0

Begin completing the square.

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + -10y + 12 + y2 = 0 + 12

Reorder the terms:
-12 + 12 + -10y + y2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -10y + y2 = 0 + 12
-10y + y2 = 0 + 12

Combine like terms: 0 + 12 = 12
-10y + y2 = 12

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 = 12 + 25

Reorder the terms:
25 + -10y + y2 = 12 + 25

Combine like terms: 12 + 25 = 37
25 + -10y + y2 = 37

Factor a perfect square on the left side:
(y + -5)(y + -5) = 37

Calculate the square root of the right side: 6.08276253

Break this problem into two subproblems by setting 
(y + -5) equal to 6.08276253 and -6.08276253.

Subproblem 1

y + -5 = 6.08276253 Simplifying y + -5 = 6.08276253 Reorder the terms: -5 + y = 6.08276253 Solving -5 + y = 6.08276253 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 = 6.08276253 + 5 Combine like terms: -5 + 5 = 0 0 + y = 6.08276253 + 5 y = 6.08276253 + 5 Combine like terms: 6.08276253 + 5 = 11.08276253 y = 11.08276253 Simplifying y = 11.08276253

Subproblem 2

y + -5 = -6.08276253 Simplifying y + -5 = -6.08276253 Reorder the terms: -5 + y = -6.08276253 Solving -5 + y = -6.08276253 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 = -6.08276253 + 5 Combine like terms: -5 + 5 = 0 0 + y = -6.08276253 + 5 y = -6.08276253 + 5 Combine like terms: -6.08276253 + 5 = -1.08276253 y = -1.08276253 Simplifying y = -1.08276253

Solution

The solution to the problem is based on the solutions from the subproblems. y = {11.08276253, -1.08276253}

See similar equations:

| 2w^2+11-63=0 | | 2x+35=-27 | | 3(x+9)-2x=2 | | 4R-7/3=1-2 | | 2y^2-13y^2-7y=0 | | 425=15x+250 | | 12y-8=180 | | U^2+47=11 | | 3t=2t+25 | | 4y-4+y+38=5y+40-3y | | 60+6y=30 | | 7x-3x-2=15 | | 4x^2-24x+4y^2+8y+40=0 | | 3x^3-x+2=0 | | 1.2=4/x | | 3(9)-2y=35 | | 2.9q-1.4-5.4q=-3.5q-2.6 | | (x+1)(x+1)=103 | | -9(x-1)=-9 | | 4e-1=93 | | 12/5x7/8 | | 4(x+5)=-32 | | 6x+22=4x | | 12/5•7/8 | | -2(x+2)=4 | | 7y+4m+9-2m-2y-15= | | -16t^2+24t-4=0 | | 3q+18=4q | | -5.7=1.9x-19 | | (6y^2z^8/18y^7z)^2 | | 12x^7-17x^5+20x^4= | | x^3+10x^2-10=0 |

Equations solver categories