Here,
f(x) = 7x^3 + 4x - 4
f (5) = ?
Now,
f (5) = 7*5^3 + 4*5 - 4
= 7*125 + 20 - 4
= 875 + 20 - 4
= 895 - 4
= 891
It's a Right answer...
I hope you understand...
Mark me as brainliest...
