Question

3X²+5x-2=0 Resolver com a formula de Bhaskara

Answer 1

3X²+5x-2=0

Δ= 5² -4 . 3 . (-2)
Δ= 25 + 24
Δ= 49

X= - 5 ±√ 49 / 2 .3
X= - 5 ± 7 / 6
X'= - 5 + 7 / 6 = 2 / 6 (÷2) = 1 / 3
X"= - 5 - 7 / 6 = - 12 / 6 = - 2

S={ 1/3 , - 2 }