Question

The value of 5/(9x^2 + 6x + 11) is maximum when x=?

Answer 1

9 x^2 + 6x + 11 should be minimum

Answer 2

take derivative

Answer 3

I dont think so

Answer 4

You should take derivative first..

Answer 5

or complete the squre for 9 x^2 + 6x + 11

Answer 6

18 x + 6

Answer 7

well so x=-2 will minimize 9 x^2 + 6x + 11 and consequencly will maximize
5/9 x^2 + 6x + 11

Answer 8

hw u got x = -2

Answer 9

The answer should be x = -1/3

Answer 10

sorry 18 x + 6=0 then x=-1/3

Answer 11

got it thxxx

Answer 12

Why was I sent this in a message? xD

Answer 13

A plot of 5/(9x^2 + 6x + 11) and it's derivative, in blue and red respectively, is attached.