15x^2-x-6=236

Simple and best practice solution for 15x^2-x-6=236 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 15x^2-x-6=236 equation:


Simplifying
15x2 + -1x + -6 = 236

Reorder the terms:
-6 + -1x + 15x2 = 236

Solving
-6 + -1x + 15x2 = 236

Solving for variable 'x'.

Reorder the terms:
-6 + -236 + -1x + 15x2 = 236 + -236

Combine like terms: -6 + -236 = -242
-242 + -1x + 15x2 = 236 + -236

Combine like terms: 236 + -236 = 0
-242 + -1x + 15x2 = 0

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

Divide each side by '15'.
-16.13333333 + -0.06666666667x + x2 = 0

Move the constant term to the right:

Add '16.13333333' to each side of the equation.
-16.13333333 + -0.06666666667x + 16.13333333 + x2 = 0 + 16.13333333

Reorder the terms:
-16.13333333 + 16.13333333 + -0.06666666667x + x2 = 0 + 16.13333333

Combine like terms: -16.13333333 + 16.13333333 = 0.00000000
0.00000000 + -0.06666666667x + x2 = 0 + 16.13333333
-0.06666666667x + x2 = 0 + 16.13333333

Combine like terms: 0 + 16.13333333 = 16.13333333
-0.06666666667x + x2 = 16.13333333

The x term is -0.06666666667x.  Take half its coefficient (-0.03333333334).
Square it (0.001111111112) and add it to both sides.

Add '0.001111111112' to each side of the equation.
-0.06666666667x + 0.001111111112 + x2 = 16.13333333 + 0.001111111112

Reorder the terms:
0.001111111112 + -0.06666666667x + x2 = 16.13333333 + 0.001111111112

Combine like terms: 16.13333333 + 0.001111111112 = 16.134444441112
0.001111111112 + -0.06666666667x + x2 = 16.134444441112

Factor a perfect square on the left side:
(x + -0.03333333334)(x + -0.03333333334) = 16.134444441112

Calculate the square root of the right side: 4.016770399

Break this problem into two subproblems by setting 
(x + -0.03333333334) equal to 4.016770399 and -4.016770399.

Subproblem 1

x + -0.03333333334 = 4.016770399 Simplifying x + -0.03333333334 = 4.016770399 Reorder the terms: -0.03333333334 + x = 4.016770399 Solving -0.03333333334 + x = 4.016770399 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.03333333334' to each side of the equation. -0.03333333334 + 0.03333333334 + x = 4.016770399 + 0.03333333334 Combine like terms: -0.03333333334 + 0.03333333334 = 0.00000000000 0.00000000000 + x = 4.016770399 + 0.03333333334 x = 4.016770399 + 0.03333333334 Combine like terms: 4.016770399 + 0.03333333334 = 4.05010373234 x = 4.05010373234 Simplifying x = 4.05010373234

Subproblem 2

x + -0.03333333334 = -4.016770399 Simplifying x + -0.03333333334 = -4.016770399 Reorder the terms: -0.03333333334 + x = -4.016770399 Solving -0.03333333334 + x = -4.016770399 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.03333333334' to each side of the equation. -0.03333333334 + 0.03333333334 + x = -4.016770399 + 0.03333333334 Combine like terms: -0.03333333334 + 0.03333333334 = 0.00000000000 0.00000000000 + x = -4.016770399 + 0.03333333334 x = -4.016770399 + 0.03333333334 Combine like terms: -4.016770399 + 0.03333333334 = -3.98343706566 x = -3.98343706566 Simplifying x = -3.98343706566

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.05010373234, -3.98343706566}

See similar equations:

| x^3+x^2+x=5 | | x^2+2y^2=9 | | -6/7x-43.5 | | lx+3l=2x+9 | | 2x+3=5-6 | | -4x^2+x+14=0 | | 2x*sqrtx-7sqrtx-1=0 | | 3y+4y=48 | | -2x^3+x+14=0 | | 6x-9+4-10=6 | | 6n-14=-49+n | | 4x^3-12x=7 | | -2x^3+x-14=0 | | x^4-2x^2+2=2 | | x^3-3x+2=4 | | c=180-(2x+x+20) | | x(6x-6)=(6x+9)(x-2) | | -16+2x=-32+8 | | 6x(5x+3)= | | c=180-(2x+20+x) | | n/2=n-1 | | 6a+13=109 | | 3cd+5c-cd= | | 4x+4x=48 | | 9x-47=x+73 | | 11x-20=30 | | 2x-10+5x-5=90 | | 2*(X+35)-3*(35-X)=5 | | 231600000/6 | | lx+3l+lx+4l=8 | | 4x-10-2x+16=0 | | 2*(X+65)-3*(65-X)=5 |

Equations solver categories