x=3x^2-x-24

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


Simplifying
x = 3x2 + -1x + -24

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

Solving
x = -24 + -1x + 3x2

Solving for variable 'x'.

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

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

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

Combine like terms: -24 + 24 = 0
24 + 2x + -3x2 = 0 + -1x + x + 3x2 + -3x2
24 + 2x + -3x2 = -1x + x + 3x2 + -3x2

Combine like terms: -1x + x = 0
24 + 2x + -3x2 = 0 + 3x2 + -3x2
24 + 2x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
24 + 2x + -3x2 = 0

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
-8 + -0.6666666667x + x2 = 0

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + -0.6666666667x + 8 + x2 = 0 + 8

Reorder the terms:
-8 + 8 + -0.6666666667x + x2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -0.6666666667x + x2 = 0 + 8
-0.6666666667x + x2 = 0 + 8

Combine like terms: 0 + 8 = 8
-0.6666666667x + x2 = 8

The x term is -0.6666666667x.  Take half its coefficient (-0.3333333334).
Square it (0.1111111112) and add it to both sides.

Add '0.1111111112' to each side of the equation.
-0.6666666667x + 0.1111111112 + x2 = 8 + 0.1111111112

Reorder the terms:
0.1111111112 + -0.6666666667x + x2 = 8 + 0.1111111112

Combine like terms: 8 + 0.1111111112 = 8.1111111112
0.1111111112 + -0.6666666667x + x2 = 8.1111111112

Factor a perfect square on the left side:
(x + -0.3333333334)(x + -0.3333333334) = 8.1111111112

Calculate the square root of the right side: 2.848001248

Break this problem into two subproblems by setting 
(x + -0.3333333334) equal to 2.848001248 and -2.848001248.

Subproblem 1

x + -0.3333333334 = 2.848001248 Simplifying x + -0.3333333334 = 2.848001248 Reorder the terms: -0.3333333334 + x = 2.848001248 Solving -0.3333333334 + x = 2.848001248 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3333333334' to each side of the equation. -0.3333333334 + 0.3333333334 + x = 2.848001248 + 0.3333333334 Combine like terms: -0.3333333334 + 0.3333333334 = 0.0000000000 0.0000000000 + x = 2.848001248 + 0.3333333334 x = 2.848001248 + 0.3333333334 Combine like terms: 2.848001248 + 0.3333333334 = 3.1813345814 x = 3.1813345814 Simplifying x = 3.1813345814

Subproblem 2

x + -0.3333333334 = -2.848001248 Simplifying x + -0.3333333334 = -2.848001248 Reorder the terms: -0.3333333334 + x = -2.848001248 Solving -0.3333333334 + x = -2.848001248 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3333333334' to each side of the equation. -0.3333333334 + 0.3333333334 + x = -2.848001248 + 0.3333333334 Combine like terms: -0.3333333334 + 0.3333333334 = 0.0000000000 0.0000000000 + x = -2.848001248 + 0.3333333334 x = -2.848001248 + 0.3333333334 Combine like terms: -2.848001248 + 0.3333333334 = -2.5146679146 x = -2.5146679146 Simplifying x = -2.5146679146

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.1813345814, -2.5146679146}

See similar equations:

| 141=6x+6+8x+9 | | 175=8x-x | | 2(x+34)=98.4 | | x=3x-x-24 | | x+175=8 | | 37=2x+9+6x+4 | | 3x-4(2x+4)=0 | | 2+7x-6=8x-7 | | 4(x-4)=5x | | 52=6x+4+4x+8 | | 3x=9x+30 | | -3(x+2)=6x+30 | | 3n-5=24 | | 26=3x+7+8x+8 | | 8=n+34 | | x+(-.67*x)=1311353 | | 22=4x+2+8x+8 | | x+45=15+4x | | x/-21 | | x-.67x=1311353 | | 1500/y-2y=315 | | x+(.67x)=1311353 | | -11f=7(1+2f)+5 | | x+0.67x=1311353 | | 2h+12=3h-19 | | 98=6x+5+8x+9 | | 7p=-147 | | An=7 | | N/18 | | N/45 | | 23=2x+2+3x+6 | | 18=6x+5+5x+2 |

Equations solver categories