Question

calcule as raizes 2×2-3×-5=o

Answer 1

2x² - 3x - 5 = 0

∆= 9 + 40
∆= 49

x' = 3 + 7 / 4
x' = 5/2

x" = 3 - 7 /4
x" = -1


S { -1 , 5/2}


att: Jhonny ♥