Question

cálculo completo de 3x²-7x+2=0​

Answer 1

a = 3

b = -7

c = 2

∆ = b² - 4 a c

∆ = -7² - 4 3 2

∆ = 49 - 24

∆ = 25

- b +- √∆ / 2.a

- (-7)+- √25 / 2.3

7 +- 5 / 6

x' = 7+5/6 = 12/6 = 2

x² = 7-5/6 = 2/6 = 0,33....