x(6x-2)=9

Simple and best practice solution for x(6x-2)=9 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(6x-2)=9 equation:


Simplifying
x(6x + -2) = 9

Reorder the terms:
x(-2 + 6x) = 9
(-2 * x + 6x * x) = 9
(-2x + 6x2) = 9

Solving
-2x + 6x2 = 9

Solving for variable 'x'.

Reorder the terms:
-9 + -2x + 6x2 = 9 + -9

Combine like terms: 9 + -9 = 0
-9 + -2x + 6x2 = 0

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

Divide each side by '6'.
-1.5 + -0.3333333333x + x2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + -0.3333333333x + 1.5 + x2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + -0.3333333333x + x2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + -0.3333333333x + x2 = 0 + 1.5
-0.3333333333x + x2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
-0.3333333333x + x2 = 1.5

The x term is -0.3333333333x.  Take half its coefficient (-0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
-0.3333333333x + 0.02777777779 + x2 = 1.5 + 0.02777777779

Reorder the terms:
0.02777777779 + -0.3333333333x + x2 = 1.5 + 0.02777777779

Combine like terms: 1.5 + 0.02777777779 = 1.52777777779
0.02777777779 + -0.3333333333x + x2 = 1.52777777779

Factor a perfect square on the left side:
(x + -0.1666666667)(x + -0.1666666667) = 1.52777777779

Calculate the square root of the right side: 1.236033081

Break this problem into two subproblems by setting 
(x + -0.1666666667) equal to 1.236033081 and -1.236033081.

Subproblem 1

x + -0.1666666667 = 1.236033081 Simplifying x + -0.1666666667 = 1.236033081 Reorder the terms: -0.1666666667 + x = 1.236033081 Solving -0.1666666667 + x = 1.236033081 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1666666667' to each side of the equation. -0.1666666667 + 0.1666666667 + x = 1.236033081 + 0.1666666667 Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000 0.0000000000 + x = 1.236033081 + 0.1666666667 x = 1.236033081 + 0.1666666667 Combine like terms: 1.236033081 + 0.1666666667 = 1.4026997477 x = 1.4026997477 Simplifying x = 1.4026997477

Subproblem 2

x + -0.1666666667 = -1.236033081 Simplifying x + -0.1666666667 = -1.236033081 Reorder the terms: -0.1666666667 + x = -1.236033081 Solving -0.1666666667 + x = -1.236033081 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1666666667' to each side of the equation. -0.1666666667 + 0.1666666667 + x = -1.236033081 + 0.1666666667 Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000 0.0000000000 + x = -1.236033081 + 0.1666666667 x = -1.236033081 + 0.1666666667 Combine like terms: -1.236033081 + 0.1666666667 = -1.0693664143 x = -1.0693664143 Simplifying x = -1.0693664143

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.4026997477, -1.0693664143}

See similar equations:

| 5x-y=-23 | | 60+50.45w=57.95w | | -5=2x+14 | | (2x^2-15)(x-5)=0 | | 90x-60=100 | | 90x-60=1 | | 2t-12-3x=60 | | 5a+4=14 | | 40x-8=100 | | 8x+4x+4+7=4x+3+7x | | 6(x-7)=6x+7 | | x^4+7x=3x^3+6 | | 10+10+2x=-11+2x | | 4x(x+8)-5x(x+8)= | | 2x-4=3c-8q | | 4n-17=43 | | -2(4b+1)+(9b-5)=0 | | y=-28-6y | | 3(x+2)=-8-2(x-7) | | 6A-16-4A=20 | | 25=20*x | | 3.6w=1 | | 10x+4=8-(2-3x) | | 2x-4=1234567890 | | 0.3333d=0.25d | | (x+1)(x-5)=4 | | 7x+4-10x-9= | | x^3+5=2x^2+3x | | (B+5)12= | | 0.18m+16=4+0.54m | | -41=x-17 | | 0.6=-78 |

Equations solver categories