Question

a²b-ab² para a= -3/2 e b= 2/3​

Answer 1

78/36 ou 13/6

Explicação:

a²b-ab² =

a²×b-a×b =

(-3/2)²×2/3-(-3/2)×(2/3)² =

(-3/2)²×2/3+3/2×(2/3)² =

9/4×2/3+3/2×4/9 =

18/12+12/18 =

(36÷12×18)+(36÷18×12)/36 =

(3×18)+(2×12)/36 =

54+24/36 =

78/36

78/36 = 78÷2/36÷2 = 39/18 = 39÷3/18÷3 = 13/6