Question

if f (x) = xsquare - 5 x + 7 evalute f (2) - f(-1) + f (1/3)

Answer 1

hope it helps you out

Answer 2

f(x)=x^2-5x+7
f(2)=2^2-5×2+7=4-10+7=1
f(-1)=-1^2-5×-1+7=1+5+7=13
f(1/3)=1/3^2-5×1/3+7=1/9-5/3+7=-7/9
f(2)-f(-1)+f(*1/3)=1-13-7/9=-12-7/9=12.78(paya)