Inequalities hard

Find the maximum and minimum values of the expression . Where are positive real numbers satisfying the condition

Hey leezangqe.

What class is this in? Is this in multi-variable calculus or in an optimization course? Have you learned Lagrange Multipliers?

can you explain more clearly?

Are you covering stuff like this?

Lagrange multiplier - Wikipedia, the free encyclopedia

Thank you, but I need a solution specific setups primary math!