4а(-3b) и (4-х)(-3) Срочноо

Question

4а(-3b) и
(4-х)(-3)
Срочноо

Answer 1

4а(-3b)
-12a*b
-12ab

(4-х)(-3)
(4*3-x*-3)
(-12-x*-3)
-12+3x
3x-12