Question

I will mark you as a brainist....... If x + y = 10. Then the maximum value of xy is

Answer 1

Step-by-step explanation:

x+y=10

y=10-x

xy=?

x(10-x)=0

10x-x²=0

x²-10x=0

x(x-10)=0

x=10

x=0

Answer 2

25 when x = 5 and y = 5
Check the proof in attachment