36x^2+12x-17=0

Simple and best practice solution for 36x^2+12x-17=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 36x^2+12x-17=0 equation:


Simplifying
36x2 + 12x + -17 = 0

Reorder the terms:
-17 + 12x + 36x2 = 0

Solving
-17 + 12x + 36x2 = 0

Solving for variable 'x'.

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

Divide each side by '36'.
-0.4722222222 + 0.3333333333x + x2 = 0

Move the constant term to the right:

Add '0.4722222222' to each side of the equation.
-0.4722222222 + 0.3333333333x + 0.4722222222 + x2 = 0 + 0.4722222222

Reorder the terms:
-0.4722222222 + 0.4722222222 + 0.3333333333x + x2 = 0 + 0.4722222222

Combine like terms: -0.4722222222 + 0.4722222222 = 0.0000000000
0.0000000000 + 0.3333333333x + x2 = 0 + 0.4722222222
0.3333333333x + x2 = 0 + 0.4722222222

Combine like terms: 0 + 0.4722222222 = 0.4722222222
0.3333333333x + x2 = 0.4722222222

The x term is 0.3333333333x.  Take half its coefficient (0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
0.3333333333x + 0.02777777779 + x2 = 0.4722222222 + 0.02777777779

Reorder the terms:
0.02777777779 + 0.3333333333x + x2 = 0.4722222222 + 0.02777777779

Combine like terms: 0.4722222222 + 0.02777777779 = 0.49999999999
0.02777777779 + 0.3333333333x + x2 = 0.49999999999

Factor a perfect square on the left side:
(x + 0.1666666667)(x + 0.1666666667) = 0.49999999999

Calculate the square root of the right side: 0.707106781

Break this problem into two subproblems by setting 
(x + 0.1666666667) equal to 0.707106781 and -0.707106781.

Subproblem 1

x + 0.1666666667 = 0.707106781 Simplifying x + 0.1666666667 = 0.707106781 Reorder the terms: 0.1666666667 + x = 0.707106781 Solving 0.1666666667 + x = 0.707106781 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1666666667' to each side of the equation. 0.1666666667 + -0.1666666667 + x = 0.707106781 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + x = 0.707106781 + -0.1666666667 x = 0.707106781 + -0.1666666667 Combine like terms: 0.707106781 + -0.1666666667 = 0.5404401143 x = 0.5404401143 Simplifying x = 0.5404401143

Subproblem 2

x + 0.1666666667 = -0.707106781 Simplifying x + 0.1666666667 = -0.707106781 Reorder the terms: 0.1666666667 + x = -0.707106781 Solving 0.1666666667 + x = -0.707106781 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1666666667' to each side of the equation. 0.1666666667 + -0.1666666667 + x = -0.707106781 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + x = -0.707106781 + -0.1666666667 x = -0.707106781 + -0.1666666667 Combine like terms: -0.707106781 + -0.1666666667 = -0.8737734477 x = -0.8737734477 Simplifying x = -0.8737734477

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.5404401143, -0.8737734477}

See similar equations:

| -12(3x-22)=8x+54 | | -27.9=-2.3+v/8 | | 2x^2+3x=3x^2-1-x^2 | | 2x-6x^2/7 | | x^2+20x+46=0 | | 7x^2+8x-215=0 | | 5w-3=-38 | | 4x-1/3(x+2)=1/4x | | 6x^2+6x-56=0 | | 42+3n-14=14n-14-14n | | u/7.68+7=10 | | -3(n+5)= | | -1/2x^2+x+5/2=0 | | .20x+.45(50)=23.5 | | 30x2/9 | | -3h-12k=-3 | | 1=0.2x-0.5x-14 | | 3(4)-4y=8 | | -17.1+4x=8.5 | | 5x^2-9x+2/7x+6 | | [6+.20]=2 | | -8.2=4.3+v/5 | | 7x-9=8x+5 | | -2x+6=2x+10 | | x(x+15)=-44 | | y^3-16y^2+16y=0 | | 4m^2-28m+49 | | -3w=9[2-3w] | | -10+5x=3x+8 | | 3ab-2ab= | | 3[x-7]=6x | | x/2X1=-4.12 |

Equations solver categories