December 2019 1 53 Report
2.reduza os termos semelhantes das seguintes expressões algébrica
A)5x+(7x-12)-(20+4x)
B)10x'3-[x'2-x'3-(4x'2-9)+x'3]
C)3x-{4y-[4z-(3y-4z)+3x]-5z}
D)[-(5x+2y)-(3x+9y)]-[x+(-y-3)+4]
E)7a+{2a-[4-(a+2)]+7}-(2a+5)
F)m-n-{-m+n-[m-n-(-m+n)]}
G)5x'2y-{2x'2y+[xy'2+4x'2y-(3xy'2-4x'2y)]}
H)3a-(4b+4c)-[2a+3b-(c-2a+b)-c]-(a-b)+c

Preciso da resposta rápido por favor obgd
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