Question

) Na função f(x) = x² – 6x + 8, o valor de f(0) + f(-1) é: *



a) 21

b) 22

c) 23

d) 32​

Answer 1

$\sf{f(x)=x^2-6x+8}\\\sf{f(0)=0^2-6\cdot0+8=8}\\\sf{f(-1)=(-1)^2-6\cdot(-1)+8=1+6+8=15}\\\large\boxed{\boxed{\boxed{\boxed{\sf{f(0)+f(-1)=8+15=23}}}}}$