Solving the Expression (-x-6)(x-6)+x(x-12) when x = 13/6
Let's break down the process of solving this algebraic expression when x is given as 13/6:
1. Substitute the value of x:
First, we substitute x = 13/6 into the given expression:
(-(13/6) - 6)( (13/6) - 6) + (13/6) ( (13/6) - 12 )
2. Simplify the expression:
Next, we simplify the expression using order of operations (PEMDAS/BODMAS):
- Parentheses/Brackets:
- -(13/6) - 6 = -25/6
- (13/6) - 6 = -25/6
- (13/6) - 12 = -59/6
- Multiplication:
- (-25/6)(-25/6) = 625/36
- (13/6)(-59/6) = -767/36
3. Combine the terms:
Now we have:
625/36 - 767/36 = -142/36
4. Simplify the result:
Finally, we simplify the result by reducing the fraction:
-142/36 = -71/18
Therefore, the value of the expression (-x-6)(x-6)+x(x-12) when x = 13/6 is -71/18.