4x^2-11x=6

Simple and best practice solution for 4x^2-11x=6 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 4x^2-11x=6 equation:


Simplifying
4x2 + -11x = 6

Reorder the terms:
-11x + 4x2 = 6

Solving
-11x + 4x2 = 6

Solving for variable 'x'.

Reorder the terms:
-6 + -11x + 4x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-6 + -11x + 4x2 = 0

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

Divide each side by '4'.
-1.5 + -2.75x + x2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + -2.75x + 1.5 + x2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + -2.75x + x2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + -2.75x + x2 = 0 + 1.5
-2.75x + x2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
-2.75x + x2 = 1.5

The x term is -2.75x.  Take half its coefficient (-1.375).
Square it (1.890625) and add it to both sides.

Add '1.890625' to each side of the equation.
-2.75x + 1.890625 + x2 = 1.5 + 1.890625

Reorder the terms:
1.890625 + -2.75x + x2 = 1.5 + 1.890625

Combine like terms: 1.5 + 1.890625 = 3.390625
1.890625 + -2.75x + x2 = 3.390625

Factor a perfect square on the left side:
(x + -1.375)(x + -1.375) = 3.390625

Calculate the square root of the right side: 1.841364983

Break this problem into two subproblems by setting 
(x + -1.375) equal to 1.841364983 and -1.841364983.

Subproblem 1

x + -1.375 = 1.841364983 Simplifying x + -1.375 = 1.841364983 Reorder the terms: -1.375 + x = 1.841364983 Solving -1.375 + x = 1.841364983 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.375' to each side of the equation. -1.375 + 1.375 + x = 1.841364983 + 1.375 Combine like terms: -1.375 + 1.375 = 0.000 0.000 + x = 1.841364983 + 1.375 x = 1.841364983 + 1.375 Combine like terms: 1.841364983 + 1.375 = 3.216364983 x = 3.216364983 Simplifying x = 3.216364983

Subproblem 2

x + -1.375 = -1.841364983 Simplifying x + -1.375 = -1.841364983 Reorder the terms: -1.375 + x = -1.841364983 Solving -1.375 + x = -1.841364983 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.375' to each side of the equation. -1.375 + 1.375 + x = -1.841364983 + 1.375 Combine like terms: -1.375 + 1.375 = 0.000 0.000 + x = -1.841364983 + 1.375 x = -1.841364983 + 1.375 Combine like terms: -1.841364983 + 1.375 = -0.466364983 x = -0.466364983 Simplifying x = -0.466364983

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.216364983, -0.466364983}

See similar equations:

| 5(a-4)3(a+1.5)= | | 6(x+1)=6(x+5) | | 4x^2-30*x+45=0 | | 0.2(x+70)+x=50 | | 6x+16=40 | | x^2+9*x=0 | | x/3-x/4=3 | | x^2-2*x=0 | | 5b+13=23 | | .20(6)+.05x=.10(24+x) | | 5(x-3)=4(x+6) | | x^2+6*x=0 | | -8x+12=-4 | | 2+n=10 | | 22+4x=152-9x | | y-4x-3=-2x-2 | | 2u-4=-5(u-2) | | 5x-30=95 | | 5x+4x=190 | | -2(u+5)=8u-40 | | .5-1=.2+5 | | y=24000-200x | | -9x+5(-3x-4)=42-2x | | -7a+4=60 | | 12/3-2x6 | | 277=43-w | | 277=43 | | (6x+8)-(x+2)= | | 8y+11=-53 | | -4x-6x=-2+x-10 | | -9b+8=17 | | 7y-6=10y-3y+4 |

Equations solver categories