Question

2l1-xl-5l-yl
при
х=2 и y=3

"l" = модуль

даю 35 баллов

Answer 1

$2|1-x|-5|-y|=2\cdot|1-2|-5\cdot|-3|=2\cdot|-1|-5\cdot3=2\cdot1-15=2-15=-13$