(3y²-2x+7)-(x²-y²+5)=???
Matematika
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Pertanyaan
(3y²-2x+7)-(x²-y²+5)=???
1 Jawaban
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1. Jawaban dinadinlaf14082000
(3y^2-2x+7)-(x^2-y^2+5)
=3y^2+y^2-2x-x^2+7+5
=4y^2-2x-x^2+12
=4y^2-x^2-2x+12.
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