2x(x-2)=3(x+2)

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


Simplifying
2x(x + -2) = 3(x + 2)

Reorder the terms:
2x(-2 + x) = 3(x + 2)
(-2 * 2x + x * 2x) = 3(x + 2)
(-4x + 2x2) = 3(x + 2)

Reorder the terms:
-4x + 2x2 = 3(2 + x)
-4x + 2x2 = (2 * 3 + x * 3)
-4x + 2x2 = (6 + 3x)

Solving
-4x + 2x2 = 6 + 3x

Solving for variable 'x'.

Reorder the terms:
-6 + -4x + -3x + 2x2 = 6 + 3x + -6 + -3x

Combine like terms: -4x + -3x = -7x
-6 + -7x + 2x2 = 6 + 3x + -6 + -3x

Reorder the terms:
-6 + -7x + 2x2 = 6 + -6 + 3x + -3x

Combine like terms: 6 + -6 = 0
-6 + -7x + 2x2 = 0 + 3x + -3x
-6 + -7x + 2x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
-6 + -7x + 2x2 = 0

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

Divide each side by '2'.
-3 + -3.5x + x2 = 0

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -3.5x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + -3.5x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -3.5x + x2 = 0 + 3
-3.5x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
-3.5x + x2 = 3

The x term is -3.5x.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5x + 3.0625 + x2 = 3 + 3.0625

Reorder the terms:
3.0625 + -3.5x + x2 = 3 + 3.0625

Combine like terms: 3 + 3.0625 = 6.0625
3.0625 + -3.5x + x2 = 6.0625

Factor a perfect square on the left side:
(x + -1.75)(x + -1.75) = 6.0625

Calculate the square root of the right side: 2.46221445

Break this problem into two subproblems by setting 
(x + -1.75) equal to 2.46221445 and -2.46221445.

Subproblem 1

x + -1.75 = 2.46221445 Simplifying x + -1.75 = 2.46221445 Reorder the terms: -1.75 + x = 2.46221445 Solving -1.75 + x = 2.46221445 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = 2.46221445 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = 2.46221445 + 1.75 x = 2.46221445 + 1.75 Combine like terms: 2.46221445 + 1.75 = 4.21221445 x = 4.21221445 Simplifying x = 4.21221445

Subproblem 2

x + -1.75 = -2.46221445 Simplifying x + -1.75 = -2.46221445 Reorder the terms: -1.75 + x = -2.46221445 Solving -1.75 + x = -2.46221445 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = -2.46221445 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = -2.46221445 + 1.75 x = -2.46221445 + 1.75 Combine like terms: -2.46221445 + 1.75 = -0.71221445 x = -0.71221445 Simplifying x = -0.71221445

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.21221445, -0.71221445}

See similar equations:

| 4(f+1)= | | (4x-2)+(x+28)=180 | | 6x+7x+8x=42 | | 4y-7=x+28 | | 150x=28500 | | -1.7=2x | | 6x-1=16+3x | | (x-5)=18 | | 3x+ax+b=-3 | | 45x=30(40) | | 4x=5(5) | | (-4-4x)/(x^2-x-2) | | C(30)=30 | | y=0.4x+2 | | 8*2x+6=10(x+6) | | t/9−7=−5 | | y=0.7x+2 | | 4(x+3)=7+4x | | (x-iy)(3-4i)=3-29i | | 3x+6=6(x-1)-3x | | 5X+4-6=2 | | -2(-6-7n)+5=145 | | 5*3x+8=4(25) | | 25-[2+9y-3(y+5)]=-4(4y-7)-[8(y-1)-15y+22] | | -6p+8p=16+4p | | 1.3(-2)-5.6= | | 3*3x+8=4(15) | | 26-1[1+6y-4(y+4)]=-5(3y-3)-[8(y-1)-18y+4] | | 1.3(4.3)-5.6= | | 5(2d-3)-4d=2(4-d)-15 | | 8x+8x+15x+15x=230 | | log(35/2x)=1 |

Equations solver categories