(3x−4)⋅(3x+4)=? Choose the correct choice from the following options.
A) 3x2 - 4 B) 9x2 - 16 C) -9x2 + 16 D) 9x - 8 E) None
Solution:   We use the product of the sum and the difference of the two terms:   (a+b)⋅(a−b)=a2−b2(a+b)⋅(a−b)=a2−b2   (3x−4)⋅(3x+4)=(3x)2−42=9x2−16   Answer 9x2 - 16
<result>B</result>
(3x−4)⋅(3x+4)=?