What is the extreme f(x,y)=448x+233y+xy-2x^2-3y^2-15438 ?

The extreme f(x,y)=448x+233y+xy-2x^2-3y^2-15438 is Maximum(127,60)

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extreme f(x,y)=448x+233y+xy-2x^2-3y^2-15438

extreme points

f (x, y) = 448 x + 233 y + x y - 2 x^{2} - 3 y^{2} - 15438

Maximum (127, 60)

Solution steps

Find the critical points:

(127, 60)

\frac{\partial ^{2} f}{\partial x ^{2}} = - 6

D (x, y) = 23

Check the sign of at each critical point

Check critical point

(127, 60) :

Maximum

Maximum (127, 60)

f (x) = \frac{2 x}{x ^{2} + 3}, - 4 \leq x \leq 0

f (x) = \frac{x e ^{x}}{4 - x}

x^{4} - 5 x^{3} + x^{2} + 21 x - 18

x^{2} + 64

x^{3} - 3 x^{2} - 9 x + 9

What is the extreme f(x,y)=448x+233y+xy-2x^2-3y^2-15438 ?
The extreme f(x,y)=448x+233y+xy-2x^2-3y^2-15438 is Maximum(127,60)