Question

A)9 xy+5 mn-4xy+2mn=
b)7abc-3abc-abc-2abc=
c)9xy+2xyz-4xy+9xyz=
d)10abc-4bc+2abc+4bc-12abc=
e)-mn-mn+2mn=
f)7xy+2xy+9xy=
Alquem pode responder pfv !!!

Answer 1

Explicação passo-a-passo:

a) 9xy + 5mn - 4xy + 2mn

9xy - 4xy + 5mn + 2mn

5xy + 7mn

b) 7abc - 3abc - abc- 2abc

4abc - 3abc

abc

c) 9xy + 2xyz - 4xy + 9xyz

9xy - 4xy + 2xyz + 9xyz

5xy + 11xyz

d) 10abc - 4bc + 2abc + 4bc - 12abc

10abc + 2abc - 12abc + 4bc - 4bc

12abc - 12abc

0

e) - mn - mn + 2mn

- 2mn - 2mn

- 4mn

f) 7xy + 2xy + 9xy

9xy + 9xy

18xy

espero ter ajudado ♡