Question

упростите выражение 15к-3к[5-2к]

Answer 1

$15k - 3k(5 - 2k) = \ 15k - 15k + 6k {}^{2} = \ 6k {}^{2}$

Answer 2

СПС

Answer 3

пж

Answer 4

к15-3*5-2 =к(12*3)=к=36