3x^2-3x-41=0

Simple and best practice solution for 3x^2-3x-41=0 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 3x^2-3x-41=0 equation:


Simplifying
3x2 + -3x + -41 = 0

Reorder the terms:
-41 + -3x + 3x2 = 0

Solving
-41 + -3x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-13.66666667 + -1x + x2 = 0

Move the constant term to the right:

Add '13.66666667' to each side of the equation.
-13.66666667 + -1x + 13.66666667 + x2 = 0 + 13.66666667

Reorder the terms:
-13.66666667 + 13.66666667 + -1x + x2 = 0 + 13.66666667

Combine like terms: -13.66666667 + 13.66666667 = 0.00000000
0.00000000 + -1x + x2 = 0 + 13.66666667
-1x + x2 = 0 + 13.66666667

Combine like terms: 0 + 13.66666667 = 13.66666667
-1x + x2 = 13.66666667

The x term is -1x.  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.
-1x + 0.25 + x2 = 13.66666667 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 13.66666667 + 0.25

Combine like terms: 13.66666667 + 0.25 = 13.91666667
0.25 + -1x + x2 = 13.91666667

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 13.91666667

Calculate the square root of the right side: 3.730504881

Break this problem into two subproblems by setting 
(x + -0.5) equal to 3.730504881 and -3.730504881.

Subproblem 1

x + -0.5 = 3.730504881 Simplifying x + -0.5 = 3.730504881 Reorder the terms: -0.5 + x = 3.730504881 Solving -0.5 + x = 3.730504881 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 = 3.730504881 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 3.730504881 + 0.5 x = 3.730504881 + 0.5 Combine like terms: 3.730504881 + 0.5 = 4.230504881 x = 4.230504881 Simplifying x = 4.230504881

Subproblem 2

x + -0.5 = -3.730504881 Simplifying x + -0.5 = -3.730504881 Reorder the terms: -0.5 + x = -3.730504881 Solving -0.5 + x = -3.730504881 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 = -3.730504881 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -3.730504881 + 0.5 x = -3.730504881 + 0.5 Combine like terms: -3.730504881 + 0.5 = -3.230504881 x = -3.230504881 Simplifying x = -3.230504881

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.230504881, -3.230504881}

See similar equations:

| 25x^2-90x+81= | | lin(x^2-4)=0 | | 10x-7=3x+56 | | 9x^2*6= | | 9=h-13 | | 9c=3c+12 | | -1/2×=-7/8 | | 4x-3=3-2x | | cos(4x)*cos(8x)-cos(5x)*cos(9x)=0 | | -6(2b+4)+(13b-8)=0 | | N+2(n-6)=5n-2 | | 1-49z^2= | | 6x+4x+4+7=5x+3+4x | | (8x^5y^6z)^1/2 | | 50=(10)(h)/2 | | (-2+5i)(-6+3i)=0 | | 50=(10xh)/2 | | 4(3y-2)=12 | | x^2-2xsqrt(5)+3=0 | | x+2*(x+1)=32 | | 2x+y=109 | | 15=2(w-5)-7w | | 2x+y=173 | | 2x^2-30x+70=0 | | 18(t-2)+3t=7(3t+3)-11 | | 8x+12=6X+29 | | 5(2x+7)=-23x+2 | | v=3x+1 | | 12x^2-22x+6= | | 6x+6z=6+5y | | 8+8m-6=6m+14-4m | | x+x+1=177 |

Equations solver categories