1.(3х-2)(3х+2)
2.(2а-5)(2а+5)
3.(4-7у)(4+7у)
4.(3а-2b)(3a+2b)
5.(4m-3n)(4m+3n)
6.(5x-y)(5x+y)
7.(2x-1)(2x+1)
8.(1-6a)(1+6a)
1.(3х-2)(3х+2)
2.(2а-5)(2а+5)
3.(4-7у)(4+7у)
4.(3а-2b)(3a+2b)
5.(4m-3n)(4m+3n)
6.(5x-y)(5x+y)
7.(2x-1)(2x+1)
8.(1-6a)(1+6a)