Respuesta :

ferrybukantoro

Answer:

C. 90√3

Step-by-step explanation:

5√2 . 9√6 = 45√12 = 45×2√3

= 90√3

altavistard

Answer:

45√3 (Answer A)

Step-by-step explanation:

Use Brainly's math symbol set:  5v2.9v6 is actually 5√2·9√6.

This can be rewritten in terms of √2:    5√2·9√2√3, or 5·9·√3 = 45√3