Question

(2*10^-2)^2 *(14*10^4)=
(8*10^2)^3*(12*10^3)=
(2*10^2)4*(19*10^-6)=

Answer 1

$(2*10^{-2})^2 *(14*10^4)= 4 *14*10^{-4+4} = 56*10^0 = 56*1=56 \ \ (8*10^2)^3*(12*10^3)= 512*10^{6+3}*12 = 6144*10^9 = \ =6.144.000.000.000\ \ (2*10^2)^4*(19*10^{-6})=16*10^{8-6}*19 = 304*10^2=30.400$