Minimum and Maximum

Algebra Level pending

Given that : 2 x 2 + y 2 + 2 x y 12 x 8 y 5 = 0 2x^2+y^2+2xy-12x-8y-5=0

Find the maximum value M M and the minimum value m m of 7 x + 4 y 7x+4y

write the answer as M + m M+m


The answer is 44.

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