dada a expressão : (-2)²- (-2)+(-O,5)+(0,5)² DÊ O SEU VALOR
a)Na forma decimal
b)Na forma fracionaria
kleversonizaias:
pppppppppppppooooooooooooor faaaavorrrrrrrrrrrrr
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Simples:
a)
, 

b)
a)
b)
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