Question

(+9/4am^2).(-4/9a^4)

Answer 1

Bom dia Drika

E = (+9am^2/4).(-4a^4/9)

(9/4)*(-4/9) = -1

E = (am^2)*(a^4) = a^5m^2 

-

Answer 2

(+9am^2).(-4a^4)   4             9

- a^5m^2