Question

SROSHNOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

Answer 1

Объяснение:

а)

42х⁵у⁴ / 7х⁴у⁵=6х/у

б)

(5а+4а²)/(3а²-ах)=(а(5+4а))/(а(3а-х))=

=(5+4а)/(3а-х)

в)

(4b-3)/(9-12b)=(4b-3)/(3(3-4b))=

=(-(3-4b))//(3(3-4b))= -1/3

г)

(х²-36)/(3х+18)=((х-6)(х+6))/(3(х+6))=

=(х-6)/3