Question

equação do 2° grau : x² - 22 x + 121 = 0

Answer 1

x^2-22x+121=0
delta=b^2-4.a.c
delta=(-22)^2-4.1.121
delta=484-484
delta=0
x=-b-/+ raiz de delta/2a
x=-(-22)-0/2.1
x=22-0/2
x=22/2
x=11
x=-(-22)+0/2.1
x=22+0/2
x=22/2
x=