Ответ:

  1. \(6a-9b=3(2a-3b)\);
  2. \(4x-xy=x(4-y)\);
  3. \(5ab-5ac=5a(b-c)\);
  4. \(3m^2-6mn=3m(m-2n)\);
  5. \(a^7+a^4=a^4(a^3+1)\);
  6. \(15mn^2-5mn=5mn(3n-1)\);
  7. \(24x^2y+36xy^2=12xy(2x+3y)\);
  8. \(-4x^8+16x^{15}=4x^8(4x^7-1)\);
  9. \(3x^4-6x^3+9x^5=3x^3(3x^2+x-2)\);
  10. \(8ab^3-12a^2b-24a^2b^2=4ab(2b^2-3a-6ab)\).