Question

como resolvo essa conta passo a passo f(x)=x2-8x 16

Answer 1

x²-8x+16 = 0
delta = 64-4.1.16
delta = 64-64
delta = 0
x' = x" = -b/2a = -(-8)/2.1 = 8/2 = 4 (uma raiz real)
xV = -b/2a = -(-8)/2 = 8/2 = 4
yV = -delta/4a = 0/4 = 0
V = (4;0)