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CarlaCastro16
@CarlaCastro16
November 2019
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Calcule os produtos notáveis:
a) (5a+3b)^2
b) (3x-6y)^2
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gabriel15adcvp4eh7w
A) 25a² + 2•5a•3b + 9b² = 25a² + 30ab + 9b²
b) 9x² - 2•3x•6y + 36y² = 9x² - 36xy + 36y²
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Larizinhaa
A) (5a+3b)^2
= 5a^2 + 2.5a.3b + 3b^2
= 5a^2 + 30ab + 3b^2
b) (3x-6y)^2
= 3x^2 - 2.3x.6y + 6y^2
= 3x^2 - 36xy + 6y^2
0 votes
Thanks 0
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b) 9x² - 2•3x•6y + 36y² = 9x² - 36xy + 36y²
= 5a^2 + 2.5a.3b + 3b^2
= 5a^2 + 30ab + 3b^2
b) (3x-6y)^2
= 3x^2 - 2.3x.6y + 6y^2
= 3x^2 - 36xy + 6y^2