12=.5(x)(x-2)

Simple and best practice solution for 12=.5(x)(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 12=.5(x)(x-2) equation:


Simplifying
12 = 0.5(x)(x + -2)

Reorder the terms:
12 = 0.5x(-2 + x)
12 = (-2 * 0.5x + x * 0.5x)
12 = (-1x + 0.5x2)

Solving
12 = -1x + 0.5x2

Solving for variable 'x'.

Reorder the terms:
12 + x + -0.5x2 = -1x + x + 0.5x2 + -0.5x2

Combine like terms: -1x + x = 0
12 + x + -0.5x2 = 0 + 0.5x2 + -0.5x2
12 + x + -0.5x2 = 0.5x2 + -0.5x2

Combine like terms: 0.5x2 + -0.5x2 = 0.0
12 + x + -0.5x2 = 0.0

Begin completing the square.  Divide all terms by
-0.5 the coefficient of the squared term: 

Divide each side by '-0.5'.
-24 + -2x + x2 = 0

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + -2x + 24 + x2 = 0 + 24

Reorder the terms:
-24 + 24 + -2x + x2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + -2x + x2 = 0 + 24
-2x + x2 = 0 + 24

Combine like terms: 0 + 24 = 24
-2x + x2 = 24

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-2x + 0.25 + x2 = 24 + 0.25

Reorder the terms:
0.25 + -2x + x2 = 24 + 0.25

Combine like terms: 24 + 0.25 = 24.25
0.25 + -2x + x2 = 24.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 24.25

Calculate the square root of the right side: 4.924428901

Break this problem into two subproblems by setting 
(x + 0.5) equal to 4.924428901 and -4.924428901.

Subproblem 1

x + 0.5 = 4.924428901 Simplifying x + 0.5 = 4.924428901 Reorder the terms: 0.5 + x = 4.924428901 Solving 0.5 + x = 4.924428901 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 4.924428901 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 4.924428901 + -0.5 x = 4.924428901 + -0.5 Combine like terms: 4.924428901 + -0.5 = 4.424428901 x = 4.424428901 Simplifying x = 4.424428901

Subproblem 2

x + 0.5 = -4.924428901 Simplifying x + 0.5 = -4.924428901 Reorder the terms: 0.5 + x = -4.924428901 Solving 0.5 + x = -4.924428901 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -4.924428901 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -4.924428901 + -0.5 x = -4.924428901 + -0.5 Combine like terms: -4.924428901 + -0.5 = -5.424428901 x = -5.424428901 Simplifying x = -5.424428901

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.424428901, -5.424428901}

See similar equations:

| -9x-3=-103 | | -11n+7=-4 | | 300=x^2-6x+273 | | 28-6m=7(4-8m) | | x-3(-5x-5)=7x-3 | | 204-5x=31x+20 | | 7+6ln(3x-2)=13 | | 5x+37=6(x+5)+4 | | h(t)=-16t^2+96t | | p=-2x^2+8x+2 | | 24=x(x-5) | | 8(1+5n)=40+8n | | a-3(6-6a)=30+7a | | -6(6b-2)=-5b+12 | | -6(2+3k)=-8k+18 | | -27+8n=-3(-5n-3)+2n | | 3(7r-6)=r+22 | | -105=3-3(-6+6x) | | 8(5v+5)=280 | | 13x+195=(x+15) | | -2+5(-2n+1)=83 | | 97=1+4(2x+8) | | -5-4(1+5b)=151 | | -7(8m+8)=-392 | | (9+4y)-(-1+8)+(7-y)= | | -6(6r+1)+5r=180 | | -8+3x=8-3x | | (5x-1)+(-3x-1)= | | 2y=-32 | | (5x-1)+(3x-1)= | | (2a-1)-(-5a-5)= | | 5x+3y=50 |

Equations solver categories