Ответ:
1) 25k² - 30ky + 9y²
2) 25k² + 8k^6 + 16/25k^10
3) (5a)² - (12c)² = 25a² - 144c²
5) (a - 8b)*(a + 8b)
6) (5a - 1)*(25a² + 5a + 1)
7) 2t*(16t² - 24t + 9) = 2t*(4t - 3)²
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Ответ:
1) 25k² - 30ky + 9y²
2) 25k² + 8k^6 + 16/25k^10
3) (5a)² - (12c)² = 25a² - 144c²
5) (a - 8b)*(a + 8b)
6) (5a - 1)*(25a² + 5a + 1)
7) 2t*(16t² - 24t + 9) = 2t*(4t - 3)²