Question

determine as raizes das seguintes funcoes quadraticad se possivel f(x)=x2+4-2

Answer 1

f(2) = 2.2+4-2 = 4+4-2= 6
f(1) = 1.2+4-2 = 2+4-2= 4
f(-2) = -2.2+4-2 = -4+4-2= -2
f(-1) = -1.2+4-2 = -2+4-2= 0