Question

EXPRESIONES ALGEBRAICAS

a) (5x-{11y+(-9+20x)-1}-y
b) -[6m+8n+5-{m-(n-6m)-11]
c) 15a²-[6av-{8a²+20-2(5ab-31)+a²-ab}]​

Answer 1

Respuesta:

a) (5x-{11y+(-9+20x)-1}-y

=(5x−{(20x+11y−9)−1}−y)=  

=(5x−{20x+11y−10}−y)=

=((−15x−11y+10)−y)=

=−15x−12y+10

b) -[6m+8n+5-{m-(n-6m)-11]

=−[(6m+8n+5)−{m−(−6m+n)−11])=  

=−[(6m+8n+5)−{7m−n−11])=

=m−9n−16

c) 15a²-[6av-{8a²+20-2(5ab-31)+a²-ab}]​

=15a^2+7a^2-6av+11ab-82

=22a^2-6av+11ab-82