implify the following:
(2x - 3y) (3x + y) + (x + 2y) (x - y)
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Step-by-step explanation:
(2x - 3y) (3x + y) + (x + 2y) (x - y)
=> 6x ^2 + 2xy - 9xy - 3y^2 + x^2 - xy +2xy - 2y ^2
=> 7x^2 - 6xy - 5y^ 2.
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