x^2+2x+3x-6-3x=0

Simple and best practice solution for x^2+2x+3x-6-3x=0 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+3x-6-3x=0 equation:


Simplifying
x2 + 2x + 3x + -6 + -3x = 0

Reorder the terms:
-6 + 2x + 3x + -3x + x2 = 0

Combine like terms: 2x + 3x = 5x
-6 + 5x + -3x + x2 = 0

Combine like terms: 5x + -3x = 2x
-6 + 2x + x2 = 0

Solving
-6 + 2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + 2x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + 2x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 2x + x2 = 0 + 6
2x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
2x + x2 = 6

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 6 + 1

Reorder the terms:
1 + 2x + x2 = 6 + 1

Combine like terms: 6 + 1 = 7
1 + 2x + x2 = 7

Factor a perfect square on the left side:
(x + 1)(x + 1) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(x + 1) equal to 2.645751311 and -2.645751311.

Subproblem 1

x + 1 = 2.645751311 Simplifying x + 1 = 2.645751311 Reorder the terms: 1 + x = 2.645751311 Solving 1 + x = 2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 2.645751311 + -1 Combine like terms: 1 + -1 = 0 0 + x = 2.645751311 + -1 x = 2.645751311 + -1 Combine like terms: 2.645751311 + -1 = 1.645751311 x = 1.645751311 Simplifying x = 1.645751311

Subproblem 2

x + 1 = -2.645751311 Simplifying x + 1 = -2.645751311 Reorder the terms: 1 + x = -2.645751311 Solving 1 + x = -2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -2.645751311 + -1 Combine like terms: 1 + -1 = 0 0 + x = -2.645751311 + -1 x = -2.645751311 + -1 Combine like terms: -2.645751311 + -1 = -3.645751311 x = -3.645751311 Simplifying x = -3.645751311

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.645751311, -3.645751311}

See similar equations:

| 2y+8y=80 | | y/3=-24 | | x^3-2x^2-9x-2=-20 | | F(x)=-2x^2+2x+6 | | (x+3)(x-2)-3x=0 | | (x+2)(x-2)-3x=0 | | 38=6x+2 | | -8-2=7x-4 | | (x-2)/x=3/(x+3) | | 2.5q-5.9-3.4q=1.9q-4.9 | | 3s+8=4s | | -9x-2-9x=-1+9x-9x | | 1+2(b+6)=5(b-11) | | 1/3+x=3/5 | | 91/3+53/4 | | 7u-1=8u-10 | | 3+4(1+6x)=-20 | | ln(x-2)+ln(3)=5 | | -7y+5=8y+9 | | 11/12+5/6 | | -5-4k=k | | 3x+3/4+x+18/5=11 | | 9x-4x+4=8x-34 | | -1+8(x-1)=13x+3-5x | | (x+3)/6=(3/8)+(x-5)/4 | | 9x-(4x+4)=8x-34 | | 9x-18y=72 | | -5m=4m-9 | | 6(x+4)-9=19-6x-4+12x | | -[7x-(2x+6)]=-3-[3(3x-4)-2x] | | -5.4(2t+4)-2.3(4t-6)= | | 6x+9=35 |

Equations solver categories