Question

resolva:
(√3+2√2)(√2-5√2

Answer 1

= (√3 + 2√2).(√2 - 5√2)
= √3.√2 - 5√2.√3 + 2√2.√2 - 5√2.2√2
= √6 - 5√6 + 2.2 - 10.2
= - 4√6 + 4 - 20
= - 4√6 - 16