Verified answer

Explicação passo-a-passo:

a) 4p²q³.(xyz² - 8p²q)=

4p²q³xyz² - 32p⁴q⁴

f) (-5/4 x⁶y² - 3/2 xy⁴ + 1/3 x⁵y ) . ( - 12 xy²)=

+ 60/4 x⁷y⁴ + 36/2 x²y⁶ - 12/3 x⁶y³=

15x⁷y⁴ + 18x²y⁶ - 4x⁶y⁶