Question

calcule o valor da função f(x) = x² -5x +2 para: I) x= -1 e. II) X= 3/2

Answer 1

f(x) = x²-5x+2
f(-1) = (-1)²-5.-1+2
f(-1) = 1+5+2
f(-1)= 7

f(3/2) = (3/2)²-5.3/2+2
f(3/2) = 9/4-15/2+2
f(3/2) = -13/4