Разложите на множители:
- $${\largeа)}\ a(b-1)-(1-b);$$
- $${\largeб)}\ (a+b)+3a(a+b);$$
- $${\largeв)}\ 2x(a-b)-(b-a);$$
- $${\largeг)}\ 3+a+a(3+a);$$
- $${\largeд)}\ (m-2n)-x(2n-m);$$
- $${\largeе)}\ a-b-x(b-a);$$
- $${\largeж)}\ (x-1)^2+x(x-1);$$
- $${\largeз)}\ (x+2)^2-(x+2)(x-1);$$
- $${\largeи)}\ (2x-1)^2-x(2x-1);$$
- $${\largeк)}\ (3x-1)^2+(x+2)(3x-1);$$
- $${\largeл)}\ (x-1)(x+1)+(x-3)(x+1);$$
- $${\largeм)}\ (x-2)(x+2)-(x+2)(x-1);$$
- $${\largeн)}\ (x-3)(2x+3)-(3-x)(x+1).$$