pake cara ya:) arigatou:)

a) (2,1 x 10^3 )^2
= (2,1)^2 x (10^3)^2
= 4,41 x 10^6
b) (3,5 x 10^5)^2
= 12,25 x 10^10
= 1,225 x 10^11
c) (1,1 x 10^2)^3
= 1,331 x 10^6
d) (2,5 x 10^3 ) x (4 x 10^3)
= 2,5 x 4 x 10^3 x 10^3
= 10 x 10^3 x 10^3
= 10^7
e) (3,75 x 10^2) x (1,6 x 10^3)
= 3,75 x 1,6 x 10^2 x 10^3
= 6 x 10^5