Answer:
Value of y is 1536.
Step-by-step explanation:
We have given an expression
We need to find the value of y when x=8
We will substitute the value of x as 8 in the given expression we get
On simplification we get
On further simplification we get:
Hence, the required value that is the value of y is 1536
Consider expression First, you can factor it:
Since x is integer number, then you can see that x-1 is previous integer number (x-1 is 1 unit smaller than x).
Therefore, x-1 and x are two consecutive integers. When you have two consecutive integers, one of them is always even and one is always odd. Multiplying even integer number by odd integer number you always get even integer number.
Thus, is always even.