Question

1)Efetue as adições algebricas abaixo:
a) -2tr+5km-8rt+3km-10xy+4km-15rt
b) 4m²y³-7ht-9m²y³-15py+14ht-4b²a+5ab@
c) -9xv+10gh-5a²b+6ab²+20vc-4hg+7-15
d) 4xyz-4abc+12xyz-15abc-14xzy+6-9mn-5
e)r³h(expoente7)-7mh+11hm-8r³h(expoente7)+15xy²-12x²y
f)12bh²+5cm-8h²b+3cm-4mc+4bh²-15x
g)-2m³y²-9xy-9m³y²+15xy+14y²m³-8a²b+5ab²

Answer 1

so nao consegui responder a c