Question

dada a funçao defina por
$f(x) = 2 {x}^{2} - 5x + 1calcule f( - 1)$

Answer 1

f(x)=2x² -5x+1
f(-1)=2.(-1)²-5.(-1)+1
f(-1)=2+5+1
f(-1)=8