-38=3x(x-6)-5x

Simple and best practice solution for -38=3x(x-6)-5x 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 -38=3x(x-6)-5x equation:


Simplifying
-38 = 3x(x + -6) + -5x

Reorder the terms:
-38 = 3x(-6 + x) + -5x
-38 = (-6 * 3x + x * 3x) + -5x
-38 = (-18x + 3x2) + -5x

Reorder the terms:
-38 = -18x + -5x + 3x2

Combine like terms: -18x + -5x = -23x
-38 = -23x + 3x2

Solving
-38 = -23x + 3x2

Solving for variable 'x'.

Reorder the terms:
-38 + 23x + -3x2 = -23x + 23x + 3x2 + -3x2

Combine like terms: -23x + 23x = 0
-38 + 23x + -3x2 = 0 + 3x2 + -3x2
-38 + 23x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-38 + 23x + -3x2 = 0

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

Divide each side by '-3'.
12.66666667 + -7.666666667x + x2 = 0

Move the constant term to the right:

Add '-12.66666667' to each side of the equation.
12.66666667 + -7.666666667x + -12.66666667 + x2 = 0 + -12.66666667

Reorder the terms:
12.66666667 + -12.66666667 + -7.666666667x + x2 = 0 + -12.66666667

Combine like terms: 12.66666667 + -12.66666667 = 0.00000000
0.00000000 + -7.666666667x + x2 = 0 + -12.66666667
-7.666666667x + x2 = 0 + -12.66666667

Combine like terms: 0 + -12.66666667 = -12.66666667
-7.666666667x + x2 = -12.66666667

The x term is -7.666666667x.  Take half its coefficient (-3.833333334).
Square it (14.69444445) and add it to both sides.

Add '14.69444445' to each side of the equation.
-7.666666667x + 14.69444445 + x2 = -12.66666667 + 14.69444445

Reorder the terms:
14.69444445 + -7.666666667x + x2 = -12.66666667 + 14.69444445

Combine like terms: -12.66666667 + 14.69444445 = 2.02777778
14.69444445 + -7.666666667x + x2 = 2.02777778

Factor a perfect square on the left side:
(x + -3.833333334)(x + -3.833333334) = 2.02777778

Calculate the square root of the right side: 1.424000625

Break this problem into two subproblems by setting 
(x + -3.833333334) equal to 1.424000625 and -1.424000625.

Subproblem 1

x + -3.833333334 = 1.424000625 Simplifying x + -3.833333334 = 1.424000625 Reorder the terms: -3.833333334 + x = 1.424000625 Solving -3.833333334 + x = 1.424000625 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.833333334' to each side of the equation. -3.833333334 + 3.833333334 + x = 1.424000625 + 3.833333334 Combine like terms: -3.833333334 + 3.833333334 = 0.000000000 0.000000000 + x = 1.424000625 + 3.833333334 x = 1.424000625 + 3.833333334 Combine like terms: 1.424000625 + 3.833333334 = 5.257333959 x = 5.257333959 Simplifying x = 5.257333959

Subproblem 2

x + -3.833333334 = -1.424000625 Simplifying x + -3.833333334 = -1.424000625 Reorder the terms: -3.833333334 + x = -1.424000625 Solving -3.833333334 + x = -1.424000625 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.833333334' to each side of the equation. -3.833333334 + 3.833333334 + x = -1.424000625 + 3.833333334 Combine like terms: -3.833333334 + 3.833333334 = 0.000000000 0.000000000 + x = -1.424000625 + 3.833333334 x = -1.424000625 + 3.833333334 Combine like terms: -1.424000625 + 3.833333334 = 2.409332709 x = 2.409332709 Simplifying x = 2.409332709

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.257333959, 2.409332709}

See similar equations:

| 16+2x-2x=5x-1x | | Factoringx^2-6x+9=32 | | -x-7*4=14 | | -4*-14+-7y-14y=-28 | | 45+5.50x=195+4.25 | | -5x+5=-5x+1 | | -9x+3y=54 | | 3x+15y+C=0 | | 4(x-2)+56=-4x | | 12x-5(x+4)=-20 | | 3x-1-3-10=1x+2 | | 8.75x+9=76.5625+3x | | 5x+4*-5=-20 | | (x-4)-12=2(x-6)+6 | | (2b-5)+b+(b+80)=983 | | 6+4x+4x=36 | | 2/3x-8/3=8 | | 4b+6+4b=13+7b | | -10(y-4)=5 | | 6m+2(m+3)=38 | | 8745.4/100 | | 2x-8*-1=22 | | -10(y-4)+y=5 | | 6x^2-8x*94=0 | | -5n-4-1n=-4-4n-2n | | 2(1+5x)-5x=-18 | | 11+4y+7y=0 | | 0.08x^2-160000x-500000=0 | | 7500.00+1500.00x=0 | | lnx=-x^2+8 | | X^2+25x-3x-15=0 | | 2y+8a=7 |

Equations solver categories