The product of 5 and the difference of 7 times the square of x and 3

5 x (7x²-3)

5 (7x²-3)

Step-by-step explanation:

Product means the result of multiplication.

Difference means the result of subtraction

Times indicates multiplication

square of means raised to the power of 2

The product of 5 and the difference of 7 times the square of x and 3

                         5 x (7x²- 3)

When you see "and" in between, this indicates the variables that are involved in the operation mentioned. Since it says the product of 5 and the difference of... This mean that 5 is multiplied to the quantity of the other operation used, which is the difference of 7 times the square of x  and 3.