Question

Choose the correct product of (7x − 3)(7x + 3).

Answer 1

Product of the expression is 49x² - 9.

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.

Answer 2

(49x²+21x-21x-9)
Answer: 49x²-9

hope this helps