9x^2+9x=5

Simple and best practice solution for 9x^2+9x=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 9x^2+9x=5 equation:


Simplifying
9x2 + 9x = 5

Reorder the terms:
9x + 9x2 = 5

Solving
9x + 9x2 = 5

Solving for variable 'x'.

Reorder the terms:
-5 + 9x + 9x2 = 5 + -5

Combine like terms: 5 + -5 = 0
-5 + 9x + 9x2 = 0

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

Divide each side by '9'.
-0.5555555556 + x + x2 = 0

Move the constant term to the right:

Add '0.5555555556' to each side of the equation.
-0.5555555556 + x + 0.5555555556 + x2 = 0 + 0.5555555556

Reorder the terms:
-0.5555555556 + 0.5555555556 + x + x2 = 0 + 0.5555555556

Combine like terms: -0.5555555556 + 0.5555555556 = 0.0000000000
0.0000000000 + x + x2 = 0 + 0.5555555556
x + x2 = 0 + 0.5555555556

Combine like terms: 0 + 0.5555555556 = 0.5555555556
x + x2 = 0.5555555556

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + x2 = 0.5555555556 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 0.5555555556 + 0.25

Combine like terms: 0.5555555556 + 0.25 = 0.8055555556
1.25 + x2 = 0.8055555556

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 0.8055555556

Calculate the square root of the right side: 0.897527468

Break this problem into two subproblems by setting 
(x + 0.5) equal to 0.897527468 and -0.897527468.

Subproblem 1

x + 0.5 = 0.897527468 Simplifying x + 0.5 = 0.897527468 Reorder the terms: 0.5 + x = 0.897527468 Solving 0.5 + x = 0.897527468 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.897527468 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.897527468 + -0.5 x = 0.897527468 + -0.5 Combine like terms: 0.897527468 + -0.5 = 0.397527468 x = 0.397527468 Simplifying x = 0.397527468

Subproblem 2

x + 0.5 = -0.897527468 Simplifying x + 0.5 = -0.897527468 Reorder the terms: 0.5 + x = -0.897527468 Solving 0.5 + x = -0.897527468 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -0.897527468 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.897527468 + -0.5 x = -0.897527468 + -0.5 Combine like terms: -0.897527468 + -0.5 = -1.397527468 x = -1.397527468 Simplifying x = -1.397527468

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.397527468, -1.397527468}

See similar equations:

| x^3-81x= | | 3x^2-16x-53=0 | | 2x+179=21x+35 | | 6y-12=57 | | 8-t=32 | | x(y^8+7)+4(y^8+7)= | | -9.5-4d=-3d+8.9 | | X+73+x-11=180 | | 9g+7=5g-21 | | 3(-s+1)=6(s+4) | | 7w^2-49w=0 | | -12t+19=-9-14t | | 9-t=32.5 | | 19+2v=v | | 9-4p=4-4p+5 | | 6y-5=10y-41 | | -4-12u=-5-8u-19 | | 2f=7+f | | 9y-3=-10+10y | | 4m=-5 | | 3m-23=-26+6m | | 5x+6y-9+98=180 | | 3m-8=-30+5m | | 10-3b=-10-10b-8 | | 7m-22=-15+6m | | 10-5h=-10h | | 60+60+60= | | -3n-4n-2=11-8b+3b | | 0.5r=-60 | | -4p-10=10+6p | | 90=5x+16x-36 | | 2n-4=52+9n |

Equations solver categories