11x^2+12x+3=0

Simple and best practice solution for 11x^2+12x+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 11x^2+12x+3=0 equation:


Simplifying
11x2 + 12x + 3 = 0

Reorder the terms:
3 + 12x + 11x2 = 0

Solving
3 + 12x + 11x2 = 0

Solving for variable 'x'.

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

Divide each side by '11'.
0.2727272727 + 1.090909091x + x2 = 0

Move the constant term to the right:

Add '-0.2727272727' to each side of the equation.
0.2727272727 + 1.090909091x + -0.2727272727 + x2 = 0 + -0.2727272727

Reorder the terms:
0.2727272727 + -0.2727272727 + 1.090909091x + x2 = 0 + -0.2727272727

Combine like terms: 0.2727272727 + -0.2727272727 = 0.0000000000
0.0000000000 + 1.090909091x + x2 = 0 + -0.2727272727
1.090909091x + x2 = 0 + -0.2727272727

Combine like terms: 0 + -0.2727272727 = -0.2727272727
1.090909091x + x2 = -0.2727272727

The x term is 1.090909091x.  Take half its coefficient (0.5454545455).
Square it (0.2975206612) and add it to both sides.

Add '0.2975206612' to each side of the equation.
1.090909091x + 0.2975206612 + x2 = -0.2727272727 + 0.2975206612

Reorder the terms:
0.2975206612 + 1.090909091x + x2 = -0.2727272727 + 0.2975206612

Combine like terms: -0.2727272727 + 0.2975206612 = 0.0247933885
0.2975206612 + 1.090909091x + x2 = 0.0247933885

Factor a perfect square on the left side:
(x + 0.5454545455)(x + 0.5454545455) = 0.0247933885

Calculate the square root of the right side: 0.157459165

Break this problem into two subproblems by setting 
(x + 0.5454545455) equal to 0.157459165 and -0.157459165.

Subproblem 1

x + 0.5454545455 = 0.157459165 Simplifying x + 0.5454545455 = 0.157459165 Reorder the terms: 0.5454545455 + x = 0.157459165 Solving 0.5454545455 + x = 0.157459165 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5454545455' to each side of the equation. 0.5454545455 + -0.5454545455 + x = 0.157459165 + -0.5454545455 Combine like terms: 0.5454545455 + -0.5454545455 = 0.0000000000 0.0000000000 + x = 0.157459165 + -0.5454545455 x = 0.157459165 + -0.5454545455 Combine like terms: 0.157459165 + -0.5454545455 = -0.3879953805 x = -0.3879953805 Simplifying x = -0.3879953805

Subproblem 2

x + 0.5454545455 = -0.157459165 Simplifying x + 0.5454545455 = -0.157459165 Reorder the terms: 0.5454545455 + x = -0.157459165 Solving 0.5454545455 + x = -0.157459165 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5454545455' to each side of the equation. 0.5454545455 + -0.5454545455 + x = -0.157459165 + -0.5454545455 Combine like terms: 0.5454545455 + -0.5454545455 = 0.0000000000 0.0000000000 + x = -0.157459165 + -0.5454545455 x = -0.157459165 + -0.5454545455 Combine like terms: -0.157459165 + -0.5454545455 = -0.7029137105 x = -0.7029137105 Simplifying x = -0.7029137105

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.3879953805, -0.7029137105}

See similar equations:

| 6*8-2(2-4)+5*3= | | -12-(-92)= | | 2x+3.6=7.8 | | 3[6a-4a(2a+4b)+8a]= | | (-a-5b+3)7ab= | | 18.44+(-2.26)+0.97= | | 8m/5-14=20+5m | | 3m+9=15 | | -5(0.1+0.2)-0.8=-0.3 | | A=y+yng | | x=-16t^2+96t+9 | | (r-2)(r+10)=12 | | -8x^2=-9x+16 | | 6y-7y^1/2+1=0 | | 12-6x=-8x+4 | | -85x+41=7x-14 | | 1/3(4x+1)=3(3-4x)+18 | | x-8/5=-1 | | 0.15x+0.05(10-x)=0.10(13) | | f(x)=x^2-20x+104 | | -2x+16=-22 | | 3/5(2x+13)=4(3-3x)+9 | | -12+x=43 | | -4x=-56+3x | | 8m-(7m-6)=2(m+9) | | 3(x+8)=48 | | 1/3p-3/8p=5 | | 0.8x+8.2=3.8 | | 33=8+x | | 0.50x+0.25(70)=39.5 | | 0.3x-2.4=4.1x+1.4 | | 4x+2.1=7.7 |

Equations solver categories