9x^2+24x+11=0

Simple and best practice solution for 9x^2+24x+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 9x^2+24x+11=0 equation:


Simplifying
9x2 + 24x + 11 = 0

Reorder the terms:
11 + 24x + 9x2 = 0

Solving
11 + 24x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
1.222222222 + 2.666666667x + x2 = 0

Move the constant term to the right:

Add '-1.222222222' to each side of the equation.
1.222222222 + 2.666666667x + -1.222222222 + x2 = 0 + -1.222222222

Reorder the terms:
1.222222222 + -1.222222222 + 2.666666667x + x2 = 0 + -1.222222222

Combine like terms: 1.222222222 + -1.222222222 = 0.000000000
0.000000000 + 2.666666667x + x2 = 0 + -1.222222222
2.666666667x + x2 = 0 + -1.222222222

Combine like terms: 0 + -1.222222222 = -1.222222222
2.666666667x + x2 = -1.222222222

The x term is 2.666666667x.  Take half its coefficient (1.333333334).
Square it (1.777777780) and add it to both sides.

Add '1.777777780' to each side of the equation.
2.666666667x + 1.777777780 + x2 = -1.222222222 + 1.777777780

Reorder the terms:
1.777777780 + 2.666666667x + x2 = -1.222222222 + 1.777777780

Combine like terms: -1.222222222 + 1.777777780 = 0.555555558
1.777777780 + 2.666666667x + x2 = 0.555555558

Factor a perfect square on the left side:
(x + 1.333333334)(x + 1.333333334) = 0.555555558

Calculate the square root of the right side: 0.745355994

Break this problem into two subproblems by setting 
(x + 1.333333334) equal to 0.745355994 and -0.745355994.

Subproblem 1

x + 1.333333334 = 0.745355994 Simplifying x + 1.333333334 = 0.745355994 Reorder the terms: 1.333333334 + x = 0.745355994 Solving 1.333333334 + x = 0.745355994 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = 0.745355994 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = 0.745355994 + -1.333333334 x = 0.745355994 + -1.333333334 Combine like terms: 0.745355994 + -1.333333334 = -0.58797734 x = -0.58797734 Simplifying x = -0.58797734

Subproblem 2

x + 1.333333334 = -0.745355994 Simplifying x + 1.333333334 = -0.745355994 Reorder the terms: 1.333333334 + x = -0.745355994 Solving 1.333333334 + x = -0.745355994 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = -0.745355994 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = -0.745355994 + -1.333333334 x = -0.745355994 + -1.333333334 Combine like terms: -0.745355994 + -1.333333334 = -2.078689328 x = -2.078689328 Simplifying x = -2.078689328

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.58797734, -2.078689328}

See similar equations:

| x-(-2x)=x+5 | | 27-11=2(x-7) | | 2x-3(x+1)=-(6x+3)+x | | x+19+2x=-5x-2x-11 | | 2x-2=x-38 | | 3(m+7)=2(5-m)+3 | | 4n^2+8n-5=0 | | 20-6x=10+4x | | x^2+y^2-6x-8y+16=0 | | 5x+2=2x+6 | | 3x-2=4x+3 | | -0.10(33)+0.30x=0.05(x-6) | | 4.2x+31.1=3.9-10.9x | | w-8=3 | | 12w^2+8w-15= | | -7v+2=30 | | 3(z+5)=12 | | 4x-10=9x+7 | | 5k-11=2k+7 | | 3z+5=12 | | 5(x-6)-7(x+2)=-12 | | 4x^2-25x-21=0 | | 10n^2-26n+12= | | 6+3p-4=9+20-4p | | 6x+3.6=3x+3.0 | | 11p-9=46 | | 8(a+7)=8(a-5) | | (3x-1)(3x-1)=(2x+3)(2x+3) | | -5x+6x=-3.2+2.9 | | y^2-8y+16=0 | | 5-x=-6 | | 4-x=-9 |

Equations solver categories