Question

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

49x2 + 9
49x2 − 42x + 9
49x2 − 9
49x2 + 42x + 9

Answer 1

Option A) 49x^2+9

Explanation:

Answer 2

Option A is correct.

`49x^2+ 9`

Explanation:

Find the correct product of
`(7x-3)(7x+3)`

Distributive property states that lets you multiply a sum by multiplying each addend separately and then add the products.

i.e,
`a\cdot (b+c) = a\cdot b+ a\cdot c`

The product for the following :

`(7x-3)(7x+3)`

Apply distributive property;

`7x(7x+3) -3(7x+3)`

`49x^2+21x -21x + 9`

Combine like terms;

`49x^2+ 9`

Therefore, the product of
`(7x-3)(7x+3)` is,
`49x^2+ 9`