Question

13 x ao quadrado + 8x = 0 ​

Answer 1

13x² + 8x = 0

a = 13

b = 8

c = 0

∆ = 8² - 4.13.0

∆ = 64 - 0

∆ = 64

X' = -8 + 8 / 26

X' = 0/26

X' = 0

X" = -8 -8 / 26

X" = -16 / 26

X" = -8 / 13