Ответ:
1)
1. а²-64
2.9у²-х²
3.у²+49
4.36х²+4
5.4х²+9
6.х²+25
7.х²-25у²
8.16-х²
2)
а.х²-16
б.4у²+25
в.а²-9
г.16а²-b²
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Answers & Comments
Ответ:
1)
1. а²-64
2.9у²-х²
3.у²+49
4.36х²+4
5.4х²+9
6.х²+25
7.х²-25у²
8.16-х²
2)
а.х²-16
б.4у²+25
в.а²-9
г.16а²-b²