9x^2-76x-1144=0

Simple and best practice solution for 9x^2-76x-1144=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^2-76x-1144=0 equation:


Simplifying
9x2 + -76x + -1144 = 0

Reorder the terms:
-1144 + -76x + 9x2 = 0

Solving
-1144 + -76x + 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'.
-127.1111111 + -8.444444444x + x2 = 0

Move the constant term to the right:

Add '127.1111111' to each side of the equation.
-127.1111111 + -8.444444444x + 127.1111111 + x2 = 0 + 127.1111111

Reorder the terms:
-127.1111111 + 127.1111111 + -8.444444444x + x2 = 0 + 127.1111111

Combine like terms: -127.1111111 + 127.1111111 = 0.0000000
0.0000000 + -8.444444444x + x2 = 0 + 127.1111111
-8.444444444x + x2 = 0 + 127.1111111

Combine like terms: 0 + 127.1111111 = 127.1111111
-8.444444444x + x2 = 127.1111111

The x term is -8.444444444x.  Take half its coefficient (-4.222222222).
Square it (17.82716049) and add it to both sides.

Add '17.82716049' to each side of the equation.
-8.444444444x + 17.82716049 + x2 = 127.1111111 + 17.82716049

Reorder the terms:
17.82716049 + -8.444444444x + x2 = 127.1111111 + 17.82716049

Combine like terms: 127.1111111 + 17.82716049 = 144.93827159
17.82716049 + -8.444444444x + x2 = 144.93827159

Factor a perfect square on the left side:
(x + -4.222222222)(x + -4.222222222) = 144.93827159

Calculate the square root of the right side: 12.039031173

Break this problem into two subproblems by setting 
(x + -4.222222222) equal to 12.039031173 and -12.039031173.

Subproblem 1

x + -4.222222222 = 12.039031173 Simplifying x + -4.222222222 = 12.039031173 Reorder the terms: -4.222222222 + x = 12.039031173 Solving -4.222222222 + x = 12.039031173 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.222222222' to each side of the equation. -4.222222222 + 4.222222222 + x = 12.039031173 + 4.222222222 Combine like terms: -4.222222222 + 4.222222222 = 0.000000000 0.000000000 + x = 12.039031173 + 4.222222222 x = 12.039031173 + 4.222222222 Combine like terms: 12.039031173 + 4.222222222 = 16.261253395 x = 16.261253395 Simplifying x = 16.261253395

Subproblem 2

x + -4.222222222 = -12.039031173 Simplifying x + -4.222222222 = -12.039031173 Reorder the terms: -4.222222222 + x = -12.039031173 Solving -4.222222222 + x = -12.039031173 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.222222222' to each side of the equation. -4.222222222 + 4.222222222 + x = -12.039031173 + 4.222222222 Combine like terms: -4.222222222 + 4.222222222 = 0.000000000 0.000000000 + x = -12.039031173 + 4.222222222 x = -12.039031173 + 4.222222222 Combine like terms: -12.039031173 + 4.222222222 = -7.816808951 x = -7.816808951 Simplifying x = -7.816808951

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.261253395, -7.816808951}

See similar equations:

| 17a-7=180 | | 7x+79+3x+41=180 | | 6x^2(4x^2-2x+2)= | | A+101=-14.7 | | z^3+2z^2-(3i)z-1-3i=0 | | 3y-2=26 | | 2x^2+1=37 | | 5a+5=180 | | -10b-6=176 | | (3a+3)=180 | | (a+2)+(3a+3)=180 | | 4x^2+6y=180 | | -2(w+3)=-14 | | (a+2)(3a+3)=180 | | 6-(-8r)=5r-3 | | -2*w+3=-14 | | 6y+12x+18= | | -2w+3=-14 | | x^3-4x+16=0 | | (x-5)(3+2i)=0 | | 20a-13-3-3a+7= | | 2ax=5b | | 6x^2-19x-183=0 | | -3(2x+3)-2=-1(x+1)+3x | | (x^2+x-30)(8x^2-10x-7)=0 | | 5c-5=-20 | | 12x-24= | | =1+3.3log(20) | | 3x+4x-9-3x= | | 12-8x=2(5-5x) | | =1+3.3log(40) | | -20v^8+5v^6=0 |

Equations solver categories