ci №49
Вынесение общего множителя за скобки Вынесение одночлена за скобки как общего множителя. \[10{x^2}y - 5x{y^3} + 25x{y^4} = 5xy\left( {2x - {y^2} + 5{y^3}} \right)\]
Fatal error: Uncaught Error: Call to a member function fetch_object() on boolean in /home/virtwww/w_giatrener-ru_b7b4c9ed/http/goal/Goal.class.php:16 Stack trace: #0 /home/virtwww/w_giatrener-ru_b7b4c9ed/http/subgoal/Subgoal.class.php(215): Goal->__construct(NULL) #1 /home/virtwww/w_giatrener-ru_b7b4c9ed/http/item/itemview.class.php(110): Subgoal->get_clean_link_to_goal() #2 /home/virtwww/w_giatrener-ru_b7b4c9ed/http/ci/ciview.class.php(32): ItemView->get_all_subgoals_for_item() #3 /home/virtwww/w_giatrener-ru_b7b4c9ed/http/page/page_template.php(580): CiView->get_ci_info() #4 /home/virtwww/w_giatrener-ru_b7b4c9ed/http/ci/ci.php(6): require_once('/home/virtwww/w...') #5 {main} thrown in /home/virtwww/w_giatrener-ru_b7b4c9ed/http/goal/Goal.class.php on line 16