December 2019 2 55 Report
Simplifique as expressões algébricas a seguir todas as resoluções

a) -9xy + 12x - 5y + 2 - 10x + 4xy - 7 + y

b) 2/5 a³b -3/4 a³b + 1/2 -2a³b + 5

c) -3t² + 5v -5v + t²/2 +4

d)1,5a²b³ + 4,5a³b² - a²b³ - 3,2a³b² +6,4a²b³ -a³b²

e)a-4 +b -2 +a² +3 -4a² +7a _3b+0,8

f) -ab²/2 +a^4 + 3ab²/5 - 0,3 + 3a^4/2 - 1,5

g)2xy - xy² + 3xy² - 3xy/4 -x²y
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