Question

Me ajudemmm pfvvv!!!!

1- Realize as expressões algébricas:

A) a(b+3c)-5.(6a+3b)-4.(ac-c)

B) 7.(5m-k)+3.(-7k+3m)-8.(5m-8k)

C) 6m.(o+p)-m(3o-5p)+p.(5+4m)-o,(6p-m)

Answer 1

É para expandir e depois simplificar os termos semelhantes? Ficaria assim:

A) $a(b+3c)-5\cdot (6a+3b)-4\cdot (ac-c)=$

$ab+3ac-30a-15b-4ac+4c=$

$ab-ac-30a-15b+4c$

B) $7\cdot (5m-k)+3\cdot (-7k+3m)-8\cdot(5m-8k)=$

$35m-7k-21k+9m-40m+64k=$

$4m+36k$

C) $6m\cdot(o+p)-m(3o-5p)+p\cdot (5+4m)-o\cdot(6p-m)=$

$6mo+6mp-3mo+5mp+5p+4mp-6op+mo=$

$4mo+15mp+5p-6op$