Question

1) Resolva as Equacoes .C) x+3= -20/x-6

Answer 1

Oi India

x + 3 = -20/(x - 6)

(x + 3)*(x - 6) = -20

x² + 3x - 6x - 18 = -20

x² - 3x + 2 = 0

delta
d² = 9 - 8 = 1
d = 1

x1 = (3 + 1)/2 = 4/2 = 2
x2 = (3 - 1)/2 = 2/2 = 1

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