Question

calcule o valor maximo da função f(x)= -x²+2x+2

Answer 1

$a=-1\ b=2\ c=2\newline maximo=-\frac{\Delta}{4a}=-\frac{b^2-4ac}{4a}=-\frac{2^2-4.(-1).2}{4.(-1)}=\frac{4+8}{4}=\frac{13}{4}$ Hugs