Question

Dada a função f (x)= -x²+5x+6, calcule quando possivel: F(-4/5)?

Answer 1

f(-4/5) = (-4/5)² +5(-4/5) + 6
f(-4/5) = 16/25 -4+6
f(-4/5) = 16/25 + 2
f(-4/5) = 32+100/50 =132/50 = 66/25