x(3x+6x-9+x)=93

Simple and best practice solution for x(3x+6x-9+x)=93 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+6x-9+x)=93 equation:


Simplifying
x(3x + 6x + -9 + x) = 93

Reorder the terms:
x(-9 + 3x + 6x + x) = 93

Combine like terms: 3x + 6x = 9x
x(-9 + 9x + x) = 93

Combine like terms: 9x + x = 10x
x(-9 + 10x) = 93
(-9 * x + 10x * x) = 93
(-9x + 10x2) = 93

Solving
-9x + 10x2 = 93

Solving for variable 'x'.

Reorder the terms:
-93 + -9x + 10x2 = 93 + -93

Combine like terms: 93 + -93 = 0
-93 + -9x + 10x2 = 0

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

Divide each side by '10'.
-9.3 + -0.9x + x2 = 0.0

Move the constant term to the right:

Add '9.3' to each side of the equation.
-9.3 + -0.9x + 9.3 + x2 = 0.0 + 9.3

Reorder the terms:
-9.3 + 9.3 + -0.9x + x2 = 0.0 + 9.3

Combine like terms: -9.3 + 9.3 = 0.0
0.0 + -0.9x + x2 = 0.0 + 9.3
-0.9x + x2 = 0.0 + 9.3

Combine like terms: 0.0 + 9.3 = 9.3
-0.9x + x2 = 9.3

The x term is -0.9x.  Take half its coefficient (-0.45).
Square it (0.2025) and add it to both sides.

Add '0.2025' to each side of the equation.
-0.9x + 0.2025 + x2 = 9.3 + 0.2025

Reorder the terms:
0.2025 + -0.9x + x2 = 9.3 + 0.2025

Combine like terms: 9.3 + 0.2025 = 9.5025
0.2025 + -0.9x + x2 = 9.5025

Factor a perfect square on the left side:
(x + -0.45)(x + -0.45) = 9.5025

Calculate the square root of the right side: 3.082612528

Break this problem into two subproblems by setting 
(x + -0.45) equal to 3.082612528 and -3.082612528.

Subproblem 1

x + -0.45 = 3.082612528 Simplifying x + -0.45 = 3.082612528 Reorder the terms: -0.45 + x = 3.082612528 Solving -0.45 + x = 3.082612528 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.45' to each side of the equation. -0.45 + 0.45 + x = 3.082612528 + 0.45 Combine like terms: -0.45 + 0.45 = 0.00 0.00 + x = 3.082612528 + 0.45 x = 3.082612528 + 0.45 Combine like terms: 3.082612528 + 0.45 = 3.532612528 x = 3.532612528 Simplifying x = 3.532612528

Subproblem 2

x + -0.45 = -3.082612528 Simplifying x + -0.45 = -3.082612528 Reorder the terms: -0.45 + x = -3.082612528 Solving -0.45 + x = -3.082612528 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.45' to each side of the equation. -0.45 + 0.45 + x = -3.082612528 + 0.45 Combine like terms: -0.45 + 0.45 = 0.00 0.00 + x = -3.082612528 + 0.45 x = -3.082612528 + 0.45 Combine like terms: -3.082612528 + 0.45 = -2.632612528 x = -2.632612528 Simplifying x = -2.632612528

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.532612528, -2.632612528}

See similar equations:

| x+0.25=40 | | 3x+2y+2z=180 | | t=log | | 2+3(x-9)-2(x-3)=0 | | 4+7(8-6x)=25-7x | | 2/3x-1/5x=14-10 | | (2x-7)(0.3-x)=0 | | 9y^2+22y-4=0 | | 7-4x=-8x+3 | | -9[(7x-5)(6x-2)]= | | 2/3x-1/5x | | -9[(7x-5)+-3(6x-2)]= | | log[3]x=4 | | -8(p+2)+17=-6p-5 | | (5x+2)(2x^2-17x-9)=0 | | 11m=-26+59 | | 7x-4(5-x)=46 | | y=ex+s | | -(2/3)^2_4x=0 | | 18x^2+66x=0 | | v^2-12v+24=0 | | 6u^2-12u+6=0 | | 17600=-50x^2+1500x+14800 | | 27c^3+64=0 | | 3x+2x+18=-2 | | y=4+3(-6) | | 4(x-1)+12=x+1 | | 4(x-1)+12=4x+8 | | 3-6=2x | | 4(x-1)+12=4x+1 | | -9[(7x-5)-3(6x-2)]= | | (3x+4)2=112 |

Equations solver categories