Question

25x2+4x=0 me ajudem a responder essa

Answer 1

25x² + 4x = 0

∆ = b² - 4 · a · c

∆ = 4² - 4 · 25 · c

∆ = 16

x = -b ± √∆ / 2.a

x = -4 ± $\sqrt{16} / 50$

x = -4 ± 4 / 50

x' = 0 / 50

x" = -8 / 50 = -4 / 25 = -0,16

Answer 2

25x² +4x = 0

Δ = b² -4.a.c
Δ = 4² -4.25.0
Δ = 16

x = -b ± √Δ / 2.a
x = -4 ± √16 / 50
x = -4 ± 4 / 50
x' = 0/50 = 0
x'' = -8/50 = -4/25 = -0,16