Question

a)25xy-13xy-19xy

b)16bc-2bc + 9bc-15bc=

c) 3x³.7 x²=

d) (-7x²y).(+ 13 xy)=

d) (-6x³).(-9x²)=

​

Answer 1

Explicação passo-a-passo:

a) - 7xy

b) - 2bc

c) - 21x^5

d) + 54x^5