Question

Determine se existirem os zeros ds funcao quadratica y=x ao quadrado-2x-3

Answer 1

f(x)= $2 x^{2} -2x-3$

X= (-B+/-√b²-4ac)/2a
X= (2+/-√16)/2a
X= (2+/-4)/2

x1= -1
x2= 3