Ответ:
2.
a) 2,56x² - 9 = (1,6x+3)(1,6x-3)
b) a² - 16b⁴ = (a+4b)(a-4b)
3. 43³ +47³ = 79507 + 103823 = 183330
183330 ÷ 90 = 2037
4.
а) (2х-3)³ = 8х³ - 36х² + 54х - 27
b) (3a² +2b³) ³ = 9a^6+ 54a⁴b³ + 36a²b^6 + 8b^9
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Answers & Comments
Ответ:
2.
a) 2,56x² - 9 = (1,6x+3)(1,6x-3)
b) a² - 16b⁴ = (a+4b)(a-4b)
3. 43³ +47³ = 79507 + 103823 = 183330
183330 ÷ 90 = 2037
4.
а) (2х-3)³ = 8х³ - 36х² + 54х - 27
b) (3a² +2b³) ³ = 9a^6+ 54a⁴b³ + 36a²b^6 + 8b^9