x^2+11x-3=0

Simple and best practice solution for x^2+11x-3=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+11x-3=0 equation:


Simplifying
x2 + 11x + -3 = 0

Reorder the terms:
-3 + 11x + x2 = 0

Solving
-3 + 11x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 11x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + 11x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 11x + x2 = 0 + 3
11x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
11x + x2 = 3

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 = 3 + 30.25

Reorder the terms:
30.25 + 11x + x2 = 3 + 30.25

Combine like terms: 3 + 30.25 = 33.25
30.25 + 11x + x2 = 33.25

Factor a perfect square on the left side:
(x + 5.5)(x + 5.5) = 33.25

Calculate the square root of the right side: 5.766281297

Break this problem into two subproblems by setting 
(x + 5.5) equal to 5.766281297 and -5.766281297.

Subproblem 1

x + 5.5 = 5.766281297 Simplifying x + 5.5 = 5.766281297 Reorder the terms: 5.5 + x = 5.766281297 Solving 5.5 + x = 5.766281297 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 = 5.766281297 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = 5.766281297 + -5.5 x = 5.766281297 + -5.5 Combine like terms: 5.766281297 + -5.5 = 0.266281297 x = 0.266281297 Simplifying x = 0.266281297

Subproblem 2

x + 5.5 = -5.766281297 Simplifying x + 5.5 = -5.766281297 Reorder the terms: 5.5 + x = -5.766281297 Solving 5.5 + x = -5.766281297 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 = -5.766281297 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = -5.766281297 + -5.5 x = -5.766281297 + -5.5 Combine like terms: -5.766281297 + -5.5 = -11.266281297 x = -11.266281297 Simplifying x = -11.266281297

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.266281297, -11.266281297}

See similar equations:

| (x/7)+(X/3)=9/7 | | 4(30)-120+x/2=6x | | x^2-29x-252=0 | | s+7/2=t+1 | | 1.8c+32=37.4 | | x^2-29-252=0 | | 1/5(3n+5)=(n/2+10) | | 5x-15+x=6x-18+3 | | 6-3x=-31 | | 4x-21=18 | | 1/3(d-5)=1/4 | | 3w*4u^3*2w^2u^4= | | 1/5(b+3)=2 | | 1/4(3x-2) | | 4+4c=48 | | 0=7y-16 | | 4(30)-90+x/2=6x | | 2=-(-4+5n)+2(4n-7) | | -4x^2+4x+15= | | x^3+7x^2-8=0 | | 3y-17=-2 | | 2x-4*(7x-5)=0 | | 2/3=4j/5 | | 55+4-72= | | x^2+x-46=0 | | 3+3c=36 | | -4x^2+8x= | | 3a-11=3 | | 6*(4x-3)+18=48 | | 2(30)-70+x/2=6x | | -8x^2+4x^2= | | 60-70+x/2=6x |

Equations solver categories