Question

y(elevado a 2)-16y+64=0

Answer 1

a=1
b=-16
c=64



∆=b²-4ac
∆=(-16)²-4.1.64
∆=256-256
∆=0



x=-b±√∆/2.a

x=-(-16)±√0/2.1

x=16±0/2.1

x¹=16+0/2=6
x²=16-0/2=6