9x^2-151x-14=0

Simple and best practice solution for 9x^2-151x-14=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 9x^2-151x-14=0 equation:


Simplifying
9x2 + -151x + -14 = 0

Reorder the terms:
-14 + -151x + 9x2 = 0

Solving
-14 + -151x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
-1.555555556 + -16.77777778x + x2 = 0

Move the constant term to the right:

Add '1.555555556' to each side of the equation.
-1.555555556 + -16.77777778x + 1.555555556 + x2 = 0 + 1.555555556

Reorder the terms:
-1.555555556 + 1.555555556 + -16.77777778x + x2 = 0 + 1.555555556

Combine like terms: -1.555555556 + 1.555555556 = 0.000000000
0.000000000 + -16.77777778x + x2 = 0 + 1.555555556
-16.77777778x + x2 = 0 + 1.555555556

Combine like terms: 0 + 1.555555556 = 1.555555556
-16.77777778x + x2 = 1.555555556

The x term is -16.77777778x.  Take half its coefficient (-8.38888889).
Square it (70.37345681) and add it to both sides.

Add '70.37345681' to each side of the equation.
-16.77777778x + 70.37345681 + x2 = 1.555555556 + 70.37345681

Reorder the terms:
70.37345681 + -16.77777778x + x2 = 1.555555556 + 70.37345681

Combine like terms: 1.555555556 + 70.37345681 = 71.929012366
70.37345681 + -16.77777778x + x2 = 71.929012366

Factor a perfect square on the left side:
(x + -8.38888889)(x + -8.38888889) = 71.929012366

Calculate the square root of the right side: 8.481097356

Break this problem into two subproblems by setting 
(x + -8.38888889) equal to 8.481097356 and -8.481097356.

Subproblem 1

x + -8.38888889 = 8.481097356 Simplifying x + -8.38888889 = 8.481097356 Reorder the terms: -8.38888889 + x = 8.481097356 Solving -8.38888889 + x = 8.481097356 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.38888889' to each side of the equation. -8.38888889 + 8.38888889 + x = 8.481097356 + 8.38888889 Combine like terms: -8.38888889 + 8.38888889 = 0.00000000 0.00000000 + x = 8.481097356 + 8.38888889 x = 8.481097356 + 8.38888889 Combine like terms: 8.481097356 + 8.38888889 = 16.869986246 x = 16.869986246 Simplifying x = 16.869986246

Subproblem 2

x + -8.38888889 = -8.481097356 Simplifying x + -8.38888889 = -8.481097356 Reorder the terms: -8.38888889 + x = -8.481097356 Solving -8.38888889 + x = -8.481097356 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.38888889' to each side of the equation. -8.38888889 + 8.38888889 + x = -8.481097356 + 8.38888889 Combine like terms: -8.38888889 + 8.38888889 = 0.00000000 0.00000000 + x = -8.481097356 + 8.38888889 x = -8.481097356 + 8.38888889 Combine like terms: -8.481097356 + 8.38888889 = -0.092208466 x = -0.092208466 Simplifying x = -0.092208466

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.869986246, -0.092208466}

See similar equations:

| 42/3x=14 | | 6d-1=2d+51 | | F(x)=34 | | (2/3)x+5=(1/2)x+4 | | 4x+5=4x^2-20+25 | | x=10+5y | | 4y/7-8=6y/7 | | 1/2*x-8=12 | | -4(7.5s-8.5)=4.4+10s | | -r-2(5r+8)=-82 | | (6/7)(-7/15) | | 7z+9=100-z-3 | | 14x-5-6x=3x | | 2x^4+x^2-36=0 | | (1/2y)^2+y=0 | | 2y^3-24y-13y^2=0 | | 5x+10=3x-14 | | -5(3x+7)+3x=-107 | | 5/8j-6=94 | | 0.4=3.2 | | (1/2)^2+y=0 | | x/4+5=11 | | 0.3a-2a= | | 132=-8m+4(-7+7m) | | a^2+16a+64=0 | | 4d-16=2 | | 1/8-3/7(x-3/22)=4x/9+1/4 | | -5-*6=0 | | 5.6h-30=-72 | | 45+3n=-5 | | x(15x+1x)=6 | | x^2+(x^2+3)=25 |

Equations solver categories