find the absolute maximum and minimum

Chapter , Problem 78PE

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Absolute Extrema In Exercises 71-78, find the absolute maximum and minimum values of $f$ on the region $R$ .

$f(x, y)=x^{3}+3 x y+y^{3}+1$

$R$ : The square region enclosed by the lines $x=\pm 1$ and $y=\pm 1$

Equation Transcription:

$f(x,\ y)={x}^{3}+3xy+{y}^{3}+1$

$x=\pm{}1$

$y=\pm{}1$

Text Transcription:

f(x, y)=x^3 +3xy +y^3 +1

x=pm 1

y=pm 1

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