Mathematics, 17.12.2020 08:50 gudon986732

7x2+2y-x2+18x+5-3y
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7x2+2y-x2+18x+5-3y
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7x2+2y-x2+18x+5-3y Simplify

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7x2+2y-x2+18x+5-3y
Simplify