Question

${2x}^{2} {y}^{2} + {7x}^{2} {y}^{2} - 3xy + 4xy + 7 - 9 = ?$
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Answer 1

Step-by-step explanation:

$9x {}^{2} y {}^{2} + xy - 2$

hope this may help u

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Answer 2

Answer:

Ya i know but i have many works to do but i count leave them