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**1. Find two numbers x and y whose sum is 120 and whose product is a maximum.**

**2. none**

**3. x + y = 120**

xy = maximum

x = 120 - y

I wrote these down but I don't know what to do next. Can you please show me? :) Thank You!!

xy = maximum

x = 120 - y

I wrote these down but I don't know what to do next. Can you please show me? :) Thank You!!