How do you write the expression : The product of 6 and the difference of 6 and a number?

Hint: In order to do this question, the first thing you need to do is write the second part that is the difference of a number and 6 as an expression. Then, they asked to write the product of 6. Therefore, you need to multiply the answer where you got the difference with the number 6 to get the final answer.

Complete step-by-step solution:
The first step in order to solve this question is to first write the difference of 6 and a number as an expression. Here, we can take the number as x as it is not given in the question. Therefore, it is unknown. Hence, we get the difference of 6 and a number (x) as:
$6-x$---- (1)
Here, we take 6 first because as we can see in the question, 6 was mentioned first.
Next step we have to do is that, now we have to take the product with 6. Therefore, we have to multiply the equation 1 with 6. Therefore, we get the answer as
$\Rightarrow 6\left(6-x\right)$
Therefore, we get the final answer of the question How do you write the expression : The product of 6 and the difference of 6 and a number as $6\left(6-x\right )$.

Note: This question is fairly simple to solve. Remember to go from the end of the question to the starting, so that you will be able to solve the question easily. Also read the question more times so that you will be able to understand it.