Помогите прошу!!! 10*100^0,5lg9-lg2

Question

Помогите прошу!!! 10*100^0,5lg9-lg2

Answer 1

10*100^(0.5lg(9)-lg(2)=
10*10^2(0.5lg(4.5))=
10*10^lg(4.5)=
10*4.5=45