Разложите многочлен на множители:
- $${\largeа)}\ x(a+b)+y(a+b);$$
- $${\largeб)}\ (a+b)a-b(a+b);$$
- $${\largeв)}\ m(n-3)+2(n-3);$$
- $${\largeг)}\ (x+y)3-a(x+y);$$
- $${\largeд)}\ 2a(1-b)-3(1-b);$$
- $${\largeе)}\ a(b+3)-b(3+b);$$
- $${\largeж)}\ 7x(x+2y)-2(2y+x);$$
- $${\largeз)}\ a(a+b)+(a+b);$$
- $${\largeи)}\ 2x(x+2y)+3y(x+2y);$$
- $${\largeк)}\ 2x(a-1)-(a-1).$$