Question

Which product is NOT equal to 13 ?

a. (4+√3 )(4-√3 )
b. (5-2 √3 )(5+2 √3 )
c. (6+√23 )(6-√23 )
d. (7-√6 )(7+√6 )

Answer 1

the answer is D

Explanation:

because it gives us 43 as the answer