x^2-55x+11=0

Simple and best practice solution for x^2-55x+11=0 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 x^2-55x+11=0 equation:


Simplifying
x2 + -55x + 11 = 0

Reorder the terms:
11 + -55x + x2 = 0

Solving
11 + -55x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-11' to each side of the equation.
11 + -55x + -11 + x2 = 0 + -11

Reorder the terms:
11 + -11 + -55x + x2 = 0 + -11

Combine like terms: 11 + -11 = 0
0 + -55x + x2 = 0 + -11
-55x + x2 = 0 + -11

Combine like terms: 0 + -11 = -11
-55x + x2 = -11

The x term is -55x.  Take half its coefficient (-27.5).
Square it (756.25) and add it to both sides.

Add '756.25' to each side of the equation.
-55x + 756.25 + x2 = -11 + 756.25

Reorder the terms:
756.25 + -55x + x2 = -11 + 756.25

Combine like terms: -11 + 756.25 = 745.25
756.25 + -55x + x2 = 745.25

Factor a perfect square on the left side:
(x + -27.5)(x + -27.5) = 745.25

Calculate the square root of the right side: 27.299267389

Break this problem into two subproblems by setting 
(x + -27.5) equal to 27.299267389 and -27.299267389.

Subproblem 1

x + -27.5 = 27.299267389 Simplifying x + -27.5 = 27.299267389 Reorder the terms: -27.5 + x = 27.299267389 Solving -27.5 + x = 27.299267389 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '27.5' to each side of the equation. -27.5 + 27.5 + x = 27.299267389 + 27.5 Combine like terms: -27.5 + 27.5 = 0.0 0.0 + x = 27.299267389 + 27.5 x = 27.299267389 + 27.5 Combine like terms: 27.299267389 + 27.5 = 54.799267389 x = 54.799267389 Simplifying x = 54.799267389

Subproblem 2

x + -27.5 = -27.299267389 Simplifying x + -27.5 = -27.299267389 Reorder the terms: -27.5 + x = -27.299267389 Solving -27.5 + x = -27.299267389 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '27.5' to each side of the equation. -27.5 + 27.5 + x = -27.299267389 + 27.5 Combine like terms: -27.5 + 27.5 = 0.0 0.0 + x = -27.299267389 + 27.5 x = -27.299267389 + 27.5 Combine like terms: -27.299267389 + 27.5 = 0.200732611 x = 0.200732611 Simplifying x = 0.200732611

Solution

The solution to the problem is based on the solutions from the subproblems. x = {54.799267389, 0.200732611}

See similar equations:

| 1x+30=4x+6 | | .25*80= | | 14y^2-29y+15= | | 4x^3+x^2+32x+8=0 | | 5/6x-12=2-3/2x | | 4x^3+x^2+32+8=0 | | x+3x+2y=20 | | -4=20x-5 | | 1-6x=5x+16 | | 10a^5+61a^3b^2+6ab^4= | | 1.6x+2.7=1.9x+2.4 | | 3t^2-4t-15=0 | | x-1.5(2.5x-3)=4.75x | | 10x+7=x-3(5-3x) | | 5x+31=3x+15 | | -10x-9+7=2x+3 | | 10x^2+x+21=0 | | 3x^2y^2+22xy+1= | | 2*2=9 | | 8+3(2r-7)-3(4r+6)7= | | 25+15+18+4p=20 | | 3x-7=x-4 | | 181x+2=143 | | 2x-2=6x+30 | | 20-0.25n+n= | | x-37=61-6(x) | | 3(n+5)+6(n+5)= | | (n+5)+(n+5)= | | 9x^4+15x^3y+-6x^2y^2= | | -n^3+11n^2-10n=0 | | 20+0.25n+n= | | 15-2y=16 |

Equations solver categories