165=(3x+2)x

Simple and best practice solution for 165=(3x+2)x 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 165=(3x+2)x equation:


Simplifying
165 = (3x + 2) * x

Reorder the terms:
165 = (2 + 3x) * x

Reorder the terms for easier multiplication:
165 = x(2 + 3x)
165 = (2 * x + 3x * x)
165 = (2x + 3x2)

Solving
165 = 2x + 3x2

Solving for variable 'x'.

Reorder the terms:
165 + -2x + -3x2 = 2x + -2x + 3x2 + -3x2

Combine like terms: 2x + -2x = 0
165 + -2x + -3x2 = 0 + 3x2 + -3x2
165 + -2x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
165 + -2x + -3x2 = 0

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

Divide each side by '-3'.
-55 + 0.6666666667x + x2 = 0

Move the constant term to the right:

Add '55' to each side of the equation.
-55 + 0.6666666667x + 55 + x2 = 0 + 55

Reorder the terms:
-55 + 55 + 0.6666666667x + x2 = 0 + 55

Combine like terms: -55 + 55 = 0
0 + 0.6666666667x + x2 = 0 + 55
0.6666666667x + x2 = 0 + 55

Combine like terms: 0 + 55 = 55
0.6666666667x + x2 = 55

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 = 55 + 0.1111111112

Reorder the terms:
0.1111111112 + 0.6666666667x + x2 = 55 + 0.1111111112

Combine like terms: 55 + 0.1111111112 = 55.1111111112
0.1111111112 + 0.6666666667x + x2 = 55.1111111112

Factor a perfect square on the left side:
(x + 0.3333333334)(x + 0.3333333334) = 55.1111111112

Calculate the square root of the right side: 7.423685817

Break this problem into two subproblems by setting 
(x + 0.3333333334) equal to 7.423685817 and -7.423685817.

Subproblem 1

x + 0.3333333334 = 7.423685817 Simplifying x + 0.3333333334 = 7.423685817 Reorder the terms: 0.3333333334 + x = 7.423685817 Solving 0.3333333334 + x = 7.423685817 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 = 7.423685817 + -0.3333333334 Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000 0.0000000000 + x = 7.423685817 + -0.3333333334 x = 7.423685817 + -0.3333333334 Combine like terms: 7.423685817 + -0.3333333334 = 7.0903524836 x = 7.0903524836 Simplifying x = 7.0903524836

Subproblem 2

x + 0.3333333334 = -7.423685817 Simplifying x + 0.3333333334 = -7.423685817 Reorder the terms: 0.3333333334 + x = -7.423685817 Solving 0.3333333334 + x = -7.423685817 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 = -7.423685817 + -0.3333333334 Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000 0.0000000000 + x = -7.423685817 + -0.3333333334 x = -7.423685817 + -0.3333333334 Combine like terms: -7.423685817 + -0.3333333334 = -7.7570191504 x = -7.7570191504 Simplifying x = -7.7570191504

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.0903524836, -7.7570191504}

See similar equations:

| n^2+3n-35=5 | | 3=3.84 | | -1.9u+2.4=3.3 | | x+5=x+1/2+6 | | 5-7=20 | | 2x^2+15x-12=5x^2-12 | | 2x-7y=o | | 7m+2(m+3m)-9= | | 118+18x=9x+19 | | 60=d-4 | | -5x-97=-11x+47 | | -2f+18-4f=60 | | m^2+3m+1=5 | | 8*r=64 | | f(x-2)=6x-9 | | 27y=5x+16 | | 3x/4+2=x+1 | | 17=-5y+3 | | 18x+9x+19=118 | | 5+-10a+9a+-1= | | 534=-4.9h^2+12.25h+0 | | 4*n-5=11 | | 3w+6-4=6-4-2W | | 4Xn-5=11 | | 18n=5 | | Q-7=18 | | 17=3x-y | | 5-2x+4x^2=3x+8 | | 4x=10.24 | | (3x-5)(x+4)=x(3x-7)+18 | | 32x-64-3x+15+40x-40=32x+80 | | 91=(2x-1)x |

Equations solver categories