Question

dada a função quadratica f(x)= -x²+3x-2 determine
a) f(-1)=
b) f(2/3)=
c) f(5)=

Answer 1

c)
f(5)= -5² + 3.5-2
f(5)= 25+15-2
f(5)= 40-2
f(5)= 38