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Gigi1609
@Gigi1609
November 2019
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Determine o valor da expressao algébrica
(a + c) ( b +c) + (a + b ) ( b + c ) quando a= -2, b= 3 e c= -5
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(a + c) ( b +c) + (a + b ) ( b + c )
a = -2
b = 3
c = -5
Agora vamos substituir as letras pelos números
fazendo jogo de sinais
(a + c) ( b +c) + (a + b ) ( b + c )
(- 2 - 5) (3 - 5 ) + (-2 + 3 ) (3-5)
-7 - 2 - 1 - 2
-10 - 2
= -12
1 votes
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a = -2
b = 3
c = -5
Agora vamos substituir as letras pelos números
fazendo jogo de sinais
(a + c) ( b +c) + (a + b ) ( b + c )
(- 2 - 5) (3 - 5 ) + (-2 + 3 ) (3-5)
-7 - 2 - 1 - 2
-10 - 2
= -12