compute-7x-27x-2-quickly-by-recognizing-the-form-of-the-product-show-your-result

Question

Compute (7x+2)(7x−2)(7x + 2)(7x - 2).

Accepted Answer

49x2−$$449x^2 - 4$$

Answer

$$49x2+449x^2 + 4$$

Answer

7x2−$$47x^2 - 4$$

Answer

49x2−$$28x+449x^2 - 28x + 4$$