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AmandaSouza29
@AmandaSouza29
October 2020
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quadrado de um numero aumentando de 25 e igual a 10 vezes esse numero.Calcule
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fagnerdi
X²+25=10x
x²-10x+25=0
Δ = b2 - 4.a.c
Δ = -102 - 4 . 1 . 25
Δ = 100 - 4. 1 . 25
Δ = 0
Usando Báscara:
x = (-b +- √Δ)/2a
x = (-(-10) + √0)/2.1
x = 10 / 2
x = 5
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x²-10x+25=0
Δ = b2 - 4.a.c
Δ = -102 - 4 . 1 . 25
Δ = 100 - 4. 1 . 25
Δ = 0
Usando Báscara:
x = (-b +- √Δ)/2a
x = (-(-10) + √0)/2.1
x = 10 / 2
x = 5