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Exercício de Expressoes algébricas
Exercício:
determine o valor numerico da expressoes 2xao quadrado-xy quando x=-2ey=4
determine o valor numerico da expressoes 2xao quadrado-xy quando x=-2ey=4
Não to conseguindo resolver estas expressoes:
a)(-2+1-0)2 +(-(-21)+0
b)0(-158)2 +(-2 :-2)
c)(-2)+21-1(-2+3)
2
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