(2r)^2 = 4r или 4r^2?

Question

(2r)^2 = 4r или 4r^2?

Answer 1

(2r)^2=2^2*r^2=4r^2 (По свойстве степени)

Answer 2

(2r)^2=4r^2
Ответ: {4r^2}