x^2-13x-24=0

Simple and best practice solution for x^2-13x-24=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 x^2-13x-24=0 equation:


Simplifying
x2 + -13x + -24 = 0

Reorder the terms:
-24 + -13x + x2 = 0

Solving
-24 + -13x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + -13x + 24 + x2 = 0 + 24

Reorder the terms:
-24 + 24 + -13x + x2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + -13x + x2 = 0 + 24
-13x + x2 = 0 + 24

Combine like terms: 0 + 24 = 24
-13x + x2 = 24

The x term is -13x.  Take half its coefficient (-6.5).
Square it (42.25) and add it to both sides.

Add '42.25' to each side of the equation.
-13x + 42.25 + x2 = 24 + 42.25

Reorder the terms:
42.25 + -13x + x2 = 24 + 42.25

Combine like terms: 24 + 42.25 = 66.25
42.25 + -13x + x2 = 66.25

Factor a perfect square on the left side:
(x + -6.5)(x + -6.5) = 66.25

Calculate the square root of the right side: 8.139410298

Break this problem into two subproblems by setting 
(x + -6.5) equal to 8.139410298 and -8.139410298.

Subproblem 1

x + -6.5 = 8.139410298 Simplifying x + -6.5 = 8.139410298 Reorder the terms: -6.5 + x = 8.139410298 Solving -6.5 + x = 8.139410298 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = 8.139410298 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = 8.139410298 + 6.5 x = 8.139410298 + 6.5 Combine like terms: 8.139410298 + 6.5 = 14.639410298 x = 14.639410298 Simplifying x = 14.639410298

Subproblem 2

x + -6.5 = -8.139410298 Simplifying x + -6.5 = -8.139410298 Reorder the terms: -6.5 + x = -8.139410298 Solving -6.5 + x = -8.139410298 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = -8.139410298 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = -8.139410298 + 6.5 x = -8.139410298 + 6.5 Combine like terms: -8.139410298 + 6.5 = -1.639410298 x = -1.639410298 Simplifying x = -1.639410298

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.639410298, -1.639410298}

See similar equations:

| -48=6[v+2] | | (3x+4).5=50 | | 9x^2+65x+150=0 | | 16-10b+b^2=0 | | A=9.5t | | 3x+4.5=50 | | 4(2x+6)=3x-32 | | x^2-32x-68=0 | | 1=4z+21 | | 10x-17=6x-1 | | 2y^2+15y+22=0 | | -17+3n=(n-2) | | 3(1+n)-5=3d-2 | | 4x^2-2x=7 | | 3y+5=21 | | 9=0.3n | | 2x^2+22x+60=0 | | y=.75x-20 | | (47x+57y)+(-15x+44y)= | | 8cups=quarts | | 18-12z=30 | | x*y=3 | | (3x-6)=21 | | 4x+32=x^2 | | 6*0.6= | | (4x-6)=14 | | 3log(x)+10=13 | | .6+7=3 | | 4(5z-1)-2(z+5)=13(z+1) | | -2r+4+3r=6-7 | | -24+10x+x^2=0 | | x^3-11x^2+36x-36=0 |

Equations solver categories