Question

verifique quantas raizes tem a equeçao: x² - 16×+64= 0

Answer 1

x^2-16x+64=0
delta=b^2-4ac
delta=(-16)^2-4.1.64
delta=256-256
delta=0
x=-b-/+ raiz de delta/2a
x=-(-16)-0/2.1
x=16-0/2
x=16/2
x=8