Question

помогите пожалуста 385​

Answer 1

1) 5х(х+11)=5х+5*11=5х+55

2) с*(12-m)=12с-сm

3) (4c+d)*8=4с*8d=32c+8d

4) 6(p+3k-9t)=6p+6*3k-6*9t=6p+18k-54t

Answer 2

5х(х+11)=5х+5*11=5х+55 с*(12-m)=12с-сm  (4c+d)*8=4с*8d=32c+8d  6(p+3k-9t)=6p+6*3k-6*9t=6p+18k-54t