Question

me ajuda por favor (Se puder já com gráfico)

Answer 1

(a) f (×)=×2 -9× + 8 = f (2,9)
(b) f (×)=×2-5×+6=f (
$( \sqrt{2 } )$

(c) f (×)=2×2+7×=2.2-7
(d) f (×)=×2-4×+12= (
$\sqrt[62]{21}$