Question

${x}^{2} {y}^{2} + 2 {x}^{2} y - 3 {y}^{2} x + 6$
$x = 4 \\ y = 5$
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Answer 1

Step-by-step explanation:

${x }^{2} {y}^{2} + 2 {x}^{2} y - 3 {y}^{2} x + 6 \\ \\ putting \: the \: value \: of \: x = 4 \: and \: y = 5 \\ \\ {4}^{2} \times {5}^{2} + 2 \times {4}^{2} \times 5 - 3 \times {5}^{2} \times 4 + 6 \\ \\ 16 \times 25 + 10 \times 16 - 12 \times 25 + 6 \\ \\ 400 + 160 - 300 + 6 \\ \\ 266$