Question

Разложите на множители 64-b

Answer 1

2)(8-b)(8+b)
3)(1,7-d)(1,7+d)
4)(10/11-y)(10/11+y)
5)(t- 20/21)(t+20/21)
6)(7y+4)*7b-4)
7)(2/5t-6)(2/5t+6)