Question

Y=x2+5×+4 armar a conta

Answer 1

X²+5x+4

Δ=B²-4.a.c
Δ=5²-4.1.4
Δ=25-16
Δ=9

-b+-√Δ/2.A

-5+-3
______=  X'= -2/2   x'= -1  X''=  -8/2 =  -4 
   2