x^2-2x-24=x-3

Simple and best practice solution for x^2-2x-24=x-3 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^2-2x-24=x-3 equation:


Simplifying
x2 + -2x + -24 = x + -3

Reorder the terms:
-24 + -2x + x2 = x + -3

Reorder the terms:
-24 + -2x + x2 = -3 + x

Solving
-24 + -2x + x2 = -3 + x

Solving for variable 'x'.

Reorder the terms:
-24 + 3 + -2x + -1x + x2 = -3 + x + 3 + -1x

Combine like terms: -24 + 3 = -21
-21 + -2x + -1x + x2 = -3 + x + 3 + -1x

Combine like terms: -2x + -1x = -3x
-21 + -3x + x2 = -3 + x + 3 + -1x

Reorder the terms:
-21 + -3x + x2 = -3 + 3 + x + -1x

Combine like terms: -3 + 3 = 0
-21 + -3x + x2 = 0 + x + -1x
-21 + -3x + x2 = x + -1x

Combine like terms: x + -1x = 0
-21 + -3x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '21' to each side of the equation.
-21 + -3x + 21 + x2 = 0 + 21

Reorder the terms:
-21 + 21 + -3x + x2 = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -3x + x2 = 0 + 21
-3x + x2 = 0 + 21

Combine like terms: 0 + 21 = 21
-3x + x2 = 21

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = 21 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 21 + 2.25

Combine like terms: 21 + 2.25 = 23.25
2.25 + -3x + x2 = 23.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 23.25

Calculate the square root of the right side: 4.82182538

Break this problem into two subproblems by setting 
(x + -1.5) equal to 4.82182538 and -4.82182538.

Subproblem 1

x + -1.5 = 4.82182538 Simplifying x + -1.5 = 4.82182538 Reorder the terms: -1.5 + x = 4.82182538 Solving -1.5 + x = 4.82182538 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 4.82182538 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 4.82182538 + 1.5 x = 4.82182538 + 1.5 Combine like terms: 4.82182538 + 1.5 = 6.32182538 x = 6.32182538 Simplifying x = 6.32182538

Subproblem 2

x + -1.5 = -4.82182538 Simplifying x + -1.5 = -4.82182538 Reorder the terms: -1.5 + x = -4.82182538 Solving -1.5 + x = -4.82182538 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -4.82182538 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -4.82182538 + 1.5 x = -4.82182538 + 1.5 Combine like terms: -4.82182538 + 1.5 = -3.32182538 x = -3.32182538 Simplifying x = -3.32182538

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.32182538, -3.32182538}

See similar equations:

| -12x+21=-10x | | 3x=12.5+3.5x | | -15-r=0 | | -10h-14=-84 | | 2a*3/4*8= | | 4h+12-h-5=17 | | -2(1-9)=-24 | | 3x+5+2x=12+16 | | 7x-6=5x-56 | | Log(3x-5)=log(4x+7) | | b=4v+2 | | (3x-4)(-4x+7)=0 | | 1=-8x-9 | | 2x-x-23= | | 31.25=5/x | | S=C+qm | | 15(2+x)-3x=14 | | 5x+4+7x+4=8x+10+9x-6 | | X=4(2x-4)-3x-2 | | x^20=0.01 | | 4c+c-5= | | -3(-6x-8)=38+4x | | (4x-2)/-2 | | -18+b=-21 | | 2x-6=2-6x | | 8r^2-8r-2=0 | | x^2+8x-968=0 | | 2(c+4)-5c= | | -70(z-6)=-70 | | x^20=1 | | 5/h-7/12=-3/4h-13/6 | | (1/3)r-4=2 |

Equations solver categories