Find the maximum value of F (x), using the mean inequality! Let x > - 1, find the inequality of the maximum mean value of F (x) = (x + 5) * (x + 2) / (x + 1)~ And the maximum~~~~

Find the maximum value of F (x), using the mean inequality! Let x > - 1, find the inequality of the maximum mean value of F (x) = (x + 5) * (x + 2) / (x + 1)~ And the maximum~~~~

f(x)=(x+5)*(x+2)/(x+1)
=(x+1+4)*(x+1+1)/(x+1)
=(x+1)+5+4/(x+1)
>=2*2+5=9
When x = 1 is a=