63. Вынести общий множитель за скобки: 1) x^(1/2) + x; 2) (ab)^(1/3) + (ac)^(1/3); 3) y^(1/4) − y^(1/3); 4) 12x y^(1/2) − 3x^(1/2)y.

1) x^(1/2) + x = x^(1/2)(1 + x^(1/2)).

2) (ab)^(1/3) + (ac)^(1/3) = a^(1/3)(b^(1/3) + c^(1/3)).

3) y^(1/4) − y^(1/3) = y^(1/4)(1 − y^(1/12)).

4) 12x y^(1/2) − 3x^(1/2)y = 3x^(1/2)y^(1/2)(4x^(1/2) − y^(1/2)).