x^2+11x=5

Simple and best practice solution for x^2+11x=5 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+11x=5 equation:


Simplifying
x2 + 11x = 5

Reorder the terms:
11x + x2 = 5

Solving
11x + x2 = 5

Solving for variable 'x'.

Reorder the terms:
-5 + 11x + x2 = 5 + -5

Combine like terms: 5 + -5 = 0
-5 + 11x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + 11x + 5 + x2 = 0 + 5

Reorder the terms:
-5 + 5 + 11x + x2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 11x + x2 = 0 + 5
11x + x2 = 0 + 5

Combine like terms: 0 + 5 = 5
11x + x2 = 5

The x term is 11x.  Take half its coefficient (5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
11x + 30.25 + x2 = 5 + 30.25

Reorder the terms:
30.25 + 11x + x2 = 5 + 30.25

Combine like terms: 5 + 30.25 = 35.25
30.25 + 11x + x2 = 35.25

Factor a perfect square on the left side:
(x + 5.5)(x + 5.5) = 35.25

Calculate the square root of the right side: 5.937171044

Break this problem into two subproblems by setting 
(x + 5.5) equal to 5.937171044 and -5.937171044.

Subproblem 1

x + 5.5 = 5.937171044 Simplifying x + 5.5 = 5.937171044 Reorder the terms: 5.5 + x = 5.937171044 Solving 5.5 + x = 5.937171044 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = 5.937171044 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = 5.937171044 + -5.5 x = 5.937171044 + -5.5 Combine like terms: 5.937171044 + -5.5 = 0.437171044 x = 0.437171044 Simplifying x = 0.437171044

Subproblem 2

x + 5.5 = -5.937171044 Simplifying x + 5.5 = -5.937171044 Reorder the terms: 5.5 + x = -5.937171044 Solving 5.5 + x = -5.937171044 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = -5.937171044 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = -5.937171044 + -5.5 x = -5.937171044 + -5.5 Combine like terms: -5.937171044 + -5.5 = -11.437171044 x = -11.437171044 Simplifying x = -11.437171044

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.437171044, -11.437171044}

See similar equations:

| 15+3=18 | | (D*D+4)y=4tanx | | 7.66=2(3.14)r | | 8x-10y=-66 | | X(x+3)(x-4)=0 | | 19+5x=-7-14 | | a-3-a/3 | | (ab-3)(ab-3)= | | 9=x+(x*(50/100)) | | X+1350+x-1350=10500 | | 5+3x=-7+9 | | (n)(2n-5)(10n+3)=0 | | 2x-11=-3(x+2) | | (3x^2+5x)(15x^2-1x-2)=0 | | 8x+3=3(2x+1)+x+5 | | 4(y+8)=3(y+14) | | -2x/3+2=5/6-3x/2 | | y=2415+45 | | 56w^2-23w-63= | | 8x=2(2x+3y) | | 2x+3y=8x | | 5v^2+39v+54= | | 6-4y=16-9y | | 2x-y=x+y | | 15=2x+y | | 22-x=3x-22 | | 3(7x)=9x+24 | | 2(5+x)=5x-8 | | x+(2+x)=116 | | 3/4x=32 | | 48=6C-9 | | x=1/2x+9 |

Equations solver categories