Question

if f(x)=x2-6x-391 evaluate f(2)+1​

Answer 1

f(x) = x2 - 6x - 391

f(2) = 2^2 - 6×2 - 391

= 4 - 12 - 391

= -399

so, f(2)+1 = (-399 + 1) = (-398) ans.