Question

Resolva as equações,na formula Bhaskára e Girard


b 2
3x - 30 + 27 = 0

Answer 1

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Ola Dragon

3x² - 30x + 27 = 0

Bhaskára 
x² - 10x + 9 = 0

delta
d² = 100 - 36 = 64
d = 8

x1 = (10 + 8)/2 = 9
x2 = (10 - 8)/2 = 1

Girardx² - 10x + 9 = 0

S = -b/a = 10
P = c/a = 9

S = 9 + 1
P = 9*1 

x1 = 9
x2 = 1

pronto