Question

simplificando √40, vamos ter:
a) 2√5     b)5√2      c)2√10     d)10√2

Answer 1

$\boxed{ \sqrt{40} ~\to~ \sqrt{4.10}~\to~ \sqrt{2^2.10}~\to~2 \sqrt{10} }$

Answer 2

V40=V(2² * 10)=2V10 (V significa raiz) Alternativa C 2V10