Question

cat face radical din 4 inmultit cu a la puterea a 3-a?
$\sqrt{4 a {}^{3} }$

Answer 1

√4a³ = √4 * √a³ = 2 * a *√a = 2a√a

Answer 2

are sens doar pt a≥0

√(4a³)=√(4*a²*a)=√4*√a²*√a=2*|a|*√a=2*a*√a=2a√a