Answer:
Product of the expression is 49x² - 9.
Step-by-step explanation:
We have to find the product of (7x - 3)(7x + 3).
As we know the formula (a -b)(a + b) = a² - b²
So we replace the values of a = 7x and b = 3
Then (7x - 3)(7x + 3) = [(7x)²- (3)²]
= 49x² - 9
Therefore, product of the expression is 49x² - 9.
