5(x²y + y² -x) - 5x (xy + 2y² -7)
Matematika
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Pertanyaan
5(x²y + y² -x) - 5x (xy + 2y² -7)
1 Jawaban
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1. Jawaban dhaffasawira
5 ( x²y + y² - x ) - 5x ( xy + 2y² - 7 )
= 5x²y + 5y² - 5x - 5x²y -10y² + 35
= 5x²y - 5x²y + 5y² - 10y² - 5x + 35
= -5y² - 5x + 35
= 5 ( -y² - x + 7 )