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Carolinegomes3
@Carolinegomes3
September 2019
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Calcule o valor numérico das expressões considerando os valores de a é b em cada linha .
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(a + b)² a² + b
²
(1 + 7)
² = 8² = 64 1² + 7
² = 1 + 49 = 50
(4 + 3)
² = 7² = 49 4² + 3
² = 16 + 9 = 25
(-2 + 8)
² = 6² = 36 -2² + 8
² = 4 + 64 = 68
(a - b)
² a² - b²
(5 - 2)
² = 7² = 49 5² - 2² = 25 - 4 = 21
(6 - 1)
² = 5² = 25 6² - 1² = 36 - 1 = 35
(-3 - 1)
² = -4² = 16 -3² - (-1)
² = 9 + 1 = 10
24 votes
Thanks 45
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Lista de comentários
(1 + 7)² = 8² = 64 1² + 7² = 1 + 49 = 50
(4 + 3)² = 7² = 49 4² + 3² = 16 + 9 = 25
(-2 + 8)² = 6² = 36 -2² + 8² = 4 + 64 = 68
(a - b)² a² - b²
(5 - 2)² = 7² = 49 5² - 2² = 25 - 4 = 21
(6 - 1)² = 5² = 25 6² - 1² = 36 - 1 = 35
(-3 - 1)² = -4² = 16 -3² - (-1)² = 9 + 1 = 10