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27.02.2021 •
Mathematics
Question 2
Factorise completely:
2.2 a²-7a-30
2.4 -8a³+8a
2.6 15x⁴-15y⁴
2.8 2(x-y)²-x+y
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Ответ:
48000/2=2400
1yr=400 semi monroy
2400-400=2000