Queenkiyahh6141 Queenkiyahh6141 30-05-2023 Mathematics contestada Find the global maximum and the global minimum values of function f(x, y) = x² + y² + x²y + 4 y²+x²y +4 on the region B = {(x, y) € R² | − 1 ≤ x ≤ 1, R2-1≤x≤1, -1≤ y ≤1}.