if x 4y 40 and xy 6 what will be the value of x 2y |cheapassignmenttutors.com

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if x 4y 40 and xy 6 what will be the value of x 2y | cheapassignmenttutors.com

If x²+4y²=40 and xy=6, what will be the value of x+2y? Please explain how you arrived at your answer.