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Guguu113
@Guguu113
December 2019
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2° grau ... 5x²+28x+21
me ajudem por favor
como resolver ?
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Vamos aplicar as definições de Bhaskara.
Δ = b² - 4ac
Δ = 28² - 4.5.21
Δ = 784 - 420
Δ = 364
x´= -28 + √364 / 10
x'' = -28 - √364 / 10
att: Jhonny
1 votes
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Δ = b² - 4ac
Δ = 28² - 4.5.21
Δ = 784 - 420
Δ = 364
x´= -28 + √364 / 10
x'' = -28 - √364 / 10
att: Jhonny