Question

Упросите выражение)пожалуйста:)

Answer 1

a) .((3m+4)/(9m²-4))+3/(4-6m)=((3m+4)/((3m-2)(3m+2))-3/(2*(3m-2))=

((6m+8)/(2(3m-2)(3m+2))-3*(3m+2)/((2(3m-2)(3m+2))=

((6m+8-9m-6)/((2(3m-2)(3m+2))=(2-3m)/((2(3m-2)(3m+2))=-1/(2*(3m+2))=

-1/(6m+4)

б) ((х-12а)/(х²-16а²))-(4а/(4ах-х²))=((х-12а)/((х-4а)(х+4а))-4а/((4а-х)*х)=

(х*(х-12а))/(х*(х-4а)(х+4а))+4а/((х-4а)*х)=((х²-12ах))/(х*(х-4а)(х+4а))+

4а*(х+4а))/((х-4а)*х(х+4а))*)=((х²-12ах+4ах+16а²))/(х*(х-4а)(х+4а))=

((х²-8ах+16а²))/(х*(х-4а)(х+4а))=((х-4а)²))/(х*(х-4а)(х+4а))=

(х-4а)))/(х*(х+4а))=(х-4а)/(х²+4ах)