x(5x+11)=2

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


Simplifying
x(5x + 11) = 2

Reorder the terms:
x(11 + 5x) = 2
(11 * x + 5x * x) = 2
(11x + 5x2) = 2

Solving
11x + 5x2 = 2

Solving for variable 'x'.

Reorder the terms:
-2 + 11x + 5x2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + 11x + 5x2 = 0

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

Divide each side by '5'.
-0.4 + 2.2x + x2 = 0

Move the constant term to the right:

Add '0.4' to each side of the equation.
-0.4 + 2.2x + 0.4 + x2 = 0 + 0.4

Reorder the terms:
-0.4 + 0.4 + 2.2x + x2 = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 2.2x + x2 = 0 + 0.4
2.2x + x2 = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
2.2x + x2 = 0.4

The x term is 2.2x.  Take half its coefficient (1.1).
Square it (1.21) and add it to both sides.

Add '1.21' to each side of the equation.
2.2x + 1.21 + x2 = 0.4 + 1.21

Reorder the terms:
1.21 + 2.2x + x2 = 0.4 + 1.21

Combine like terms: 0.4 + 1.21 = 1.61
1.21 + 2.2x + x2 = 1.61

Factor a perfect square on the left side:
(x + 1.1)(x + 1.1) = 1.61

Calculate the square root of the right side: 1.268857754

Break this problem into two subproblems by setting 
(x + 1.1) equal to 1.268857754 and -1.268857754.

Subproblem 1

x + 1.1 = 1.268857754 Simplifying x + 1.1 = 1.268857754 Reorder the terms: 1.1 + x = 1.268857754 Solving 1.1 + x = 1.268857754 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.1' to each side of the equation. 1.1 + -1.1 + x = 1.268857754 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + x = 1.268857754 + -1.1 x = 1.268857754 + -1.1 Combine like terms: 1.268857754 + -1.1 = 0.168857754 x = 0.168857754 Simplifying x = 0.168857754

Subproblem 2

x + 1.1 = -1.268857754 Simplifying x + 1.1 = -1.268857754 Reorder the terms: 1.1 + x = -1.268857754 Solving 1.1 + x = -1.268857754 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.1' to each side of the equation. 1.1 + -1.1 + x = -1.268857754 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + x = -1.268857754 + -1.1 x = -1.268857754 + -1.1 Combine like terms: -1.268857754 + -1.1 = -2.368857754 x = -2.368857754 Simplifying x = -2.368857754

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.168857754, -2.368857754}

See similar equations:

| 2(13-2x)=9(9+2x) | | X+4=104 | | 20x^2+23x+6= | | 15x^2+8x-16= | | 97+x=220 | | 4(9-3r)=3(r+2) | | 67=3u+13 | | (3x-5)(2x-25)=(25x-8) | | x^2+x-35= | | 7x-6=6x-6 | | 25x+9=5x-8 | | 36*5= | | 35x^2-9x-18=0 | | z^2+2z+1= | | p-(-1)=(-7) | | 80u=40 | | 9x-2(x+5)=5(x+6) | | x^2+2xy-8y^2= | | x^2-2x=x(5+x) | | 4x+4=48 | | 9x-2(x+5)=(x+6) | | x^4+5x^3-66x^2=0 | | 4(x-6)=5 | | 2(3p-3)=5(p-1) | | -2(x+4)-6=-3(2x+8)-10 | | Y^5=3x+7xy | | 9x+6=93 | | 6(x-3)=3(2x+1) | | 56-7x=11x-24 | | m^2-2m-42=0 | | 10*-45= | | 9x^2+69x=24 |

Equations solver categories