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Matematika
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Pertanyaan
tolong jawab plisssssssssssssssss
2 Jawaban
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1. Jawaban sonya03
(2x-y)(x+2y)-(-x²+2xy+y²)
=(2x²+4xy-xy-2y²)-(-x²+2xy+y²)
=(2x²+3xy-2y²)-(-x²+2xy+y²)
=3x²+xy-3y²
=3x²-3y²+xy -
2. Jawaban arsadanys100
2x²+3xy-2y²+x²-2xy-y²
3x²+xy-3y²