.5(x-2)(x)-6=0

Simple and best practice solution for .5(x-2)(x)-6=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 .5(x-2)(x)-6=0 equation:


Simplifying
0.5(x + -2)(x) + -6 = 0

Reorder the terms:
0.5(-2 + x)(x) + -6 = 0

Reorder the terms for easier multiplication:
0.5x(-2 + x) + -6 = 0
(-2 * 0.5x + x * 0.5x) + -6 = 0
(-1x + 0.5x2) + -6 = 0

Reorder the terms:
-6 + -1x + 0.5x2 = 0

Solving
-6 + -1x + 0.5x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.5'.
-12 + -2x + x2 = 0

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + -2x + 12 + x2 = 0 + 12

Reorder the terms:
-12 + 12 + -2x + x2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -2x + x2 = 0 + 12
-2x + x2 = 0 + 12

Combine like terms: 0 + 12 = 12
-2x + x2 = 12

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 = 12 + 1

Reorder the terms:
1 + -2x + x2 = 12 + 1

Combine like terms: 12 + 1 = 13
1 + -2x + x2 = 13

Factor a perfect square on the left side:
(x + -1)(x + -1) = 13

Calculate the square root of the right side: 3.605551275

Break this problem into two subproblems by setting 
(x + -1) equal to 3.605551275 and -3.605551275.

Subproblem 1

x + -1 = 3.605551275 Simplifying x + -1 = 3.605551275 Reorder the terms: -1 + x = 3.605551275 Solving -1 + x = 3.605551275 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 = 3.605551275 + 1 Combine like terms: -1 + 1 = 0 0 + x = 3.605551275 + 1 x = 3.605551275 + 1 Combine like terms: 3.605551275 + 1 = 4.605551275 x = 4.605551275 Simplifying x = 4.605551275

Subproblem 2

x + -1 = -3.605551275 Simplifying x + -1 = -3.605551275 Reorder the terms: -1 + x = -3.605551275 Solving -1 + x = -3.605551275 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 = -3.605551275 + 1 Combine like terms: -1 + 1 = 0 0 + x = -3.605551275 + 1 x = -3.605551275 + 1 Combine like terms: -3.605551275 + 1 = -2.605551275 x = -2.605551275 Simplifying x = -2.605551275

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.605551275, -2.605551275}

See similar equations:

| 0=x^3+4x^2+7x-10 | | (7/8)/(-5/7) | | 3xy=9xy | | 5x+3-7x=8+3x | | (-7/6)/(-8/9) | | 2.5+1.1=5.9 | | 28x^3-20x^2+63x-45= | | (2x-7)(x+4)=2x^2+8xy-7x-28y | | -4x+8=2x-9 | | 2.19-2.54x=3x-4.735 | | 7(x-9)-3=2(x-9)+17 | | 4b^2-7=-4b | | (-5/9)/(-2/9) | | 1436=4/3*3.14r^3 | | 4y-3+y+45=6+7y+44-4y | | 1436=4.186666667r^3 | | D+31=24 | | f(x)=20x+1 | | 0=.25x^2+x-16 | | 3n^2-20=-4n | | 9+7x+3x=2 | | 64(4/3) | | 0.14(y-2)+0.18y=0.10y-0.05(10) | | 3/5x^-2/5=0 | | Y=34-0.5(34) | | (-3x+8z)-(-4z-2x)= | | (-1/9)/(1/2) | | Y=34-0.5(17) | | 2t^3-3t^2-12t+8=0 | | -8+3y=3 | | 512(4/3) | | (2f-5b)-(3f+9b)= |

Equations solver categories