Question

1. Siendo: A=6xy–4xy–5xy
B=–2xy+5xy–6xy
Hallar: A+B

Answer 1

A=6xy-4xy-5xy
A=2xy-5xy
A=-3xy

B=-2xy+5xy-6xy
B=3xy-6xy
B=-3xy

A+B
-3xy+-3xy
-3xy-3xy
=-6xy
A+B=-6xy