6x^2-7x=11

Simple and best practice solution for 6x^2-7x=11 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^2-7x=11 equation:


Simplifying
6x2 + -7x = 11

Reorder the terms:
-7x + 6x2 = 11

Solving
-7x + 6x2 = 11

Solving for variable 'x'.

Reorder the terms:
-11 + -7x + 6x2 = 11 + -11

Combine like terms: 11 + -11 = 0
-11 + -7x + 6x2 = 0

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

Divide each side by '6'.
-1.833333333 + -1.166666667x + x2 = 0

Move the constant term to the right:

Add '1.833333333' to each side of the equation.
-1.833333333 + -1.166666667x + 1.833333333 + x2 = 0 + 1.833333333

Reorder the terms:
-1.833333333 + 1.833333333 + -1.166666667x + x2 = 0 + 1.833333333

Combine like terms: -1.833333333 + 1.833333333 = 0.000000000
0.000000000 + -1.166666667x + x2 = 0 + 1.833333333
-1.166666667x + x2 = 0 + 1.833333333

Combine like terms: 0 + 1.833333333 = 1.833333333
-1.166666667x + x2 = 1.833333333

The x term is -1.166666667x.  Take half its coefficient (-0.5833333335).
Square it (0.3402777780) and add it to both sides.

Add '0.3402777780' to each side of the equation.
-1.166666667x + 0.3402777780 + x2 = 1.833333333 + 0.3402777780

Reorder the terms:
0.3402777780 + -1.166666667x + x2 = 1.833333333 + 0.3402777780

Combine like terms: 1.833333333 + 0.3402777780 = 2.173611111
0.3402777780 + -1.166666667x + x2 = 2.173611111

Factor a perfect square on the left side:
(x + -0.5833333335)(x + -0.5833333335) = 2.173611111

Calculate the square root of the right side: 1.474317168

Break this problem into two subproblems by setting 
(x + -0.5833333335) equal to 1.474317168 and -1.474317168.

Subproblem 1

x + -0.5833333335 = 1.474317168 Simplifying x + -0.5833333335 = 1.474317168 Reorder the terms: -0.5833333335 + x = 1.474317168 Solving -0.5833333335 + x = 1.474317168 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5833333335' to each side of the equation. -0.5833333335 + 0.5833333335 + x = 1.474317168 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = 1.474317168 + 0.5833333335 x = 1.474317168 + 0.5833333335 Combine like terms: 1.474317168 + 0.5833333335 = 2.0576505015 x = 2.0576505015 Simplifying x = 2.0576505015

Subproblem 2

x + -0.5833333335 = -1.474317168 Simplifying x + -0.5833333335 = -1.474317168 Reorder the terms: -0.5833333335 + x = -1.474317168 Solving -0.5833333335 + x = -1.474317168 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5833333335' to each side of the equation. -0.5833333335 + 0.5833333335 + x = -1.474317168 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = -1.474317168 + 0.5833333335 x = -1.474317168 + 0.5833333335 Combine like terms: -1.474317168 + 0.5833333335 = -0.8909838345 x = -0.8909838345 Simplifying x = -0.8909838345

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.0576505015, -0.8909838345}

See similar equations:

| 3(-4-2v)-3v=-66 | | v+17=2 | | 10x+8=12x-32 | | -13+m=-26 | | a-8=16-7a | | 61-7x=2x+19 | | 7x+16x=14x+126 | | 8+a=-1 | | 5x+2=7-4x | | 20+a=8 | | 7-8m+5m=16 | | -28+7x+8m-4x-5m-24= | | 5(6n+4)=170 | | 5r=14 | | 4+v=17 | | -6.3N=-7.19 | | 124=-7-4(x-9) | | 5+b=-10 | | 6(5-8v)+12=-5 | | 5x+23=13x-47 | | 6ln(x)+7ln(z)= | | 6lnx+7lnz= | | k+20=10 | | 9+p=10 | | 1-3x+2x=4 | | +8=14.1 | | x-3/7=x-3/5 | | 9x^2-134x+8=0 | | 3(3-x)=2(x-3) | | 3(x+2)-5x-4=-2x-2 | | 2x+36+7x-9=180 | | 13x+4=yforx |

Equations solver categories