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12ui08T439T43
@12ui08T439T43
November 2019
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Por favor me ajudem a resolver os produtos notáveis
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aleygna2002
C) = ( x + 7 )²
= ( x )² + 2 • x • 7 + 7²
= x² + 14x + 49
1 votes
Thanks 1
Comentários (3)
A)15 ^2 + 2× 15×3 + 3^2
225 + 60 + 9
294
B)2,5^2 +2 × 2,5×1 + 1^2
6,25 + 5 +1
12,25
C)x^2 + 2 × x ×7 + 7^2
x^2 + 14x + 49
D)4a^2 + 2× 4a ×9b + 9b^2
16a^2 +72ab + 81b^2
Acho que é assim!
espero ter ajudado!
obs: esse sinal ^ significa elevado à...!
1 votes
Thanks 3
12ui08T439T43
muito obrigado
12ui08T439T43
tmj
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Lista de comentários
= ( x )² + 2 • x • 7 + 7²
= x² + 14x + 49
225 + 60 + 9
294
B)2,5^2 +2 × 2,5×1 + 1^2
6,25 + 5 +1
12,25
C)x^2 + 2 × x ×7 + 7^2
x^2 + 14x + 49
D)4a^2 + 2× 4a ×9b + 9b^2
16a^2 +72ab + 81b^2
Acho que é assim!
espero ter ajudado!
obs: esse sinal ^ significa elevado à...!