Multiply the following Binomials, and Simplify your answer.

(3x+7)(3x−7)
(1 point)
Responses

9x2−21x−49
9 x squared minus 21 x minus 49

9x2−49
9 x squared minus 49

9x2−42x−49
9 x squared minus 42 x minus 49

9x2+42x−49