How can we simplify this? ​

Option C is correct.

the product of the given expression is

Step-by-step explanation:

To find the product of the following:

Multiply first term of the first expression with second expression

i.e        ......[1]

then,

Multiply the second term of the first expression with second expression we get

                     ......[2]

Now, subtract [1] by [2] we get;

Combine like terms;

therefore,  product of the   is