Question

ma puteti ajuta va rog la ex 3 punctele a,d si e dau coroana

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

$\it a)\ \ (\sqrt3)^4=[(\sqrt3)^2]^2=3^2=9\\ \\ \\d)\ \ (5\sqrt7)^2=5^2\cdot(\sqrt7)^2=25\cdot7=175\\ \\ \\ e)\ \ (-2\sqrt3)^3=-2^3\cdot(\sqrt3)^3=-8\cdot3\sqrt3=-24\sqrt3$