1)a)(3p-2)(3p+2) б)(1-5x)(1+5x) в)(6-7a)(6+7a)
2)a)(1/6-c)(1/6+c) б)(-5/6-y)(-5/6+y) в)(5p-2/11)(5p+2/11)
3)a)(2x-y)(2x+y) б)(4а-b)(4а+b) в)(9k-c)(9k+c)
4)a)(6x-3)(6x+3) б)(3а-9х)(3а+9х) в)(7y-8c)(7y+8c)
5)a)(ab-3)(ab+3) б)(x-cy)(x+cy) в)(xy^2-1)(xy^2+1)