6x^2+40x=9x+5

Simple and best practice solution for 6x^2+40x=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 6x^2+40x=9x+5 equation:


Simplifying
6x2 + 40x = 9x + 5

Reorder the terms:
40x + 6x2 = 9x + 5

Reorder the terms:
40x + 6x2 = 5 + 9x

Solving
40x + 6x2 = 5 + 9x

Solving for variable 'x'.

Reorder the terms:
-5 + 40x + -9x + 6x2 = 5 + 9x + -5 + -9x

Combine like terms: 40x + -9x = 31x
-5 + 31x + 6x2 = 5 + 9x + -5 + -9x

Reorder the terms:
-5 + 31x + 6x2 = 5 + -5 + 9x + -9x

Combine like terms: 5 + -5 = 0
-5 + 31x + 6x2 = 0 + 9x + -9x
-5 + 31x + 6x2 = 9x + -9x

Combine like terms: 9x + -9x = 0
-5 + 31x + 6x2 = 0

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

Divide each side by '6'.
-0.8333333333 + 5.166666667x + x2 = 0

Move the constant term to the right:

Add '0.8333333333' to each side of the equation.
-0.8333333333 + 5.166666667x + 0.8333333333 + x2 = 0 + 0.8333333333

Reorder the terms:
-0.8333333333 + 0.8333333333 + 5.166666667x + x2 = 0 + 0.8333333333

Combine like terms: -0.8333333333 + 0.8333333333 = 0.0000000000
0.0000000000 + 5.166666667x + x2 = 0 + 0.8333333333
5.166666667x + x2 = 0 + 0.8333333333

Combine like terms: 0 + 0.8333333333 = 0.8333333333
5.166666667x + x2 = 0.8333333333

The x term is 5.166666667x.  Take half its coefficient (2.583333334).
Square it (6.673611115) and add it to both sides.

Add '6.673611115' to each side of the equation.
5.166666667x + 6.673611115 + x2 = 0.8333333333 + 6.673611115

Reorder the terms:
6.673611115 + 5.166666667x + x2 = 0.8333333333 + 6.673611115

Combine like terms: 0.8333333333 + 6.673611115 = 7.5069444483
6.673611115 + 5.166666667x + x2 = 7.5069444483

Factor a perfect square on the left side:
(x + 2.583333334)(x + 2.583333334) = 7.5069444483

Calculate the square root of the right side: 2.739880371

Break this problem into two subproblems by setting 
(x + 2.583333334) equal to 2.739880371 and -2.739880371.

Subproblem 1

x + 2.583333334 = 2.739880371 Simplifying x + 2.583333334 = 2.739880371 Reorder the terms: 2.583333334 + x = 2.739880371 Solving 2.583333334 + x = 2.739880371 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.583333334' to each side of the equation. 2.583333334 + -2.583333334 + x = 2.739880371 + -2.583333334 Combine like terms: 2.583333334 + -2.583333334 = 0.000000000 0.000000000 + x = 2.739880371 + -2.583333334 x = 2.739880371 + -2.583333334 Combine like terms: 2.739880371 + -2.583333334 = 0.156547037 x = 0.156547037 Simplifying x = 0.156547037

Subproblem 2

x + 2.583333334 = -2.739880371 Simplifying x + 2.583333334 = -2.739880371 Reorder the terms: 2.583333334 + x = -2.739880371 Solving 2.583333334 + x = -2.739880371 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.583333334' to each side of the equation. 2.583333334 + -2.583333334 + x = -2.739880371 + -2.583333334 Combine like terms: 2.583333334 + -2.583333334 = 0.000000000 0.000000000 + x = -2.739880371 + -2.583333334 x = -2.739880371 + -2.583333334 Combine like terms: -2.739880371 + -2.583333334 = -5.323213705 x = -5.323213705 Simplifying x = -5.323213705

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.156547037, -5.323213705}

See similar equations:

| 6x-5=16-x | | (6x+1)=0 | | -36-16= | | 2x+7=-6x+-5 | | x-1.1=2.2 | | 9m-28=m | | A=(3ab) | | 34=49-36 | | 8p-3=7p+5 | | 5x+-14=0 | | y=-3.8x-9.4 | | 8p-pq-7pr= | | 20+30*0+1=x | | X^2-48x-323=0 | | 14*x^2-9*x-18=0 | | (20-n)=30 | | 10t=6f+24 | | -5(w+2x)=-5w*10 | | V+2-v=v-2+3-5 | | -5(w+2x)=-5w-10 | | -5(w+2x)=-5w+10 | | -5(w+2x)=-5w | | 2timesa= | | 7y^2-48y-7=0 | | 0.546=0.42 | | 9q-14=2q | | Y=9x^2+42x+49 | | -x-5=-9+3x | | 2x^2-27+88=0 | | 3a+15=51 | | 33+2x=6x-3 | | z^3=1000i |

Equations solver categories