Question

efetue a, (5a^2b^3)2
b,(-1/3a^2)-1

Answer 1

) 5.(2)+2.(-1)+(-7) ⇒ 10-2-7 ⇒ 10-9= 1

2) 3.(-5)-2.(-2) ⇒ -15 + 4= -11