12.716x^2-17.204x-9.681=0

Simple and best practice solution for 12.716x^2-17.204x-9.681=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 12.716x^2-17.204x-9.681=0 equation:


Simplifying
12.716x2 + -17.204x + -9.681 = 0

Reorder the terms:
-9.681 + -17.204x + 12.716x2 = 0

Solving
-9.681 + -17.204x + 12.716x2 = 0

Solving for variable 'x'.

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

Divide each side by '12.716'.
-0.7613243158 + -1.352941176x + x2 = 0

Move the constant term to the right:

Add '0.7613243158' to each side of the equation.
-0.7613243158 + -1.352941176x + 0.7613243158 + x2 = 0 + 0.7613243158

Reorder the terms:
-0.7613243158 + 0.7613243158 + -1.352941176x + x2 = 0 + 0.7613243158

Combine like terms: -0.7613243158 + 0.7613243158 = 0.0000000000
0.0000000000 + -1.352941176x + x2 = 0 + 0.7613243158
-1.352941176x + x2 = 0 + 0.7613243158

Combine like terms: 0 + 0.7613243158 = 0.7613243158
-1.352941176x + x2 = 0.7613243158

The x term is -1.352941176x.  Take half its coefficient (-0.676470588).
Square it (0.4576124564) and add it to both sides.

Add '0.4576124564' to each side of the equation.
-1.352941176x + 0.4576124564 + x2 = 0.7613243158 + 0.4576124564

Reorder the terms:
0.4576124564 + -1.352941176x + x2 = 0.7613243158 + 0.4576124564

Combine like terms: 0.7613243158 + 0.4576124564 = 1.2189367722
0.4576124564 + -1.352941176x + x2 = 1.2189367722

Factor a perfect square on the left side:
(x + -0.676470588)(x + -0.676470588) = 1.2189367722

Calculate the square root of the right side: 1.104054696

Break this problem into two subproblems by setting 
(x + -0.676470588) equal to 1.104054696 and -1.104054696.

Subproblem 1

x + -0.676470588 = 1.104054696 Simplifying x + -0.676470588 = 1.104054696 Reorder the terms: -0.676470588 + x = 1.104054696 Solving -0.676470588 + x = 1.104054696 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.676470588' to each side of the equation. -0.676470588 + 0.676470588 + x = 1.104054696 + 0.676470588 Combine like terms: -0.676470588 + 0.676470588 = 0.000000000 0.000000000 + x = 1.104054696 + 0.676470588 x = 1.104054696 + 0.676470588 Combine like terms: 1.104054696 + 0.676470588 = 1.780525284 x = 1.780525284 Simplifying x = 1.780525284

Subproblem 2

x + -0.676470588 = -1.104054696 Simplifying x + -0.676470588 = -1.104054696 Reorder the terms: -0.676470588 + x = -1.104054696 Solving -0.676470588 + x = -1.104054696 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.676470588' to each side of the equation. -0.676470588 + 0.676470588 + x = -1.104054696 + 0.676470588 Combine like terms: -0.676470588 + 0.676470588 = 0.000000000 0.000000000 + x = -1.104054696 + 0.676470588 x = -1.104054696 + 0.676470588 Combine like terms: -1.104054696 + 0.676470588 = -0.427584108 x = -0.427584108 Simplifying x = -0.427584108

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.780525284, -0.427584108}

See similar equations:

| 1/2(8-c)=7.5 | | 32x^2-4x-15=0 | | .4375*x=70 | | 8f=16 | | 6.50+10=f | | 9d=180 | | 2/3(12-x)=4 | | (2-6i)+(-7+3i)= | | -0.8a-8=0.2a | | n/1.7=0.22 | | 3/5x+1.4y=2/5 | | 3x+3=-1+4x | | c/7=18 | | (1+5i)+(6-2i)=0 | | 3s(8s+5)=0 | | ((m-21)/5)-((7m-8)/6) | | 6x-9x+6=x-4+10 | | f(-3)=15x+4 | | 2y=Z-4x | | 11.4+0.5x=9.9+0.6x | | .67(x-3)+.5=.75x+7 | | 9-2/5k=1 | | .33333x+5=.50x+3 | | Z-4x=2y | | 9x-8x^2=y | | 4/7y-2=-3/7y+3/14 | | 4/7y-2=-3/7y+4/14 | | N+(n+2)=38 | | (t+8)(t-15)=0 | | a/5=4 | | 4n^2=-48 | | -1=-2x |

Equations solver categories