Question

Упростите выражения: 94n-13n+25n; 15a•8•5b•c•2; 85+a+25+19a.

Answer 1

94n-13n+25n=(94+13+25)n=132n

15a×8×5b×c×2= (15×8×5×2)abc= 1200abc

85+a+25+19a= (85+25)+a+19a=
=110+a+19a=110+(1+19)a=110+20a=10(11+2a)