Question

Срочно !!!!!!!!!!!!!!​

Answer 1

Объяснение:

1.

a)

14b/20b⁴=7/10b³

б)

(4х-16)/(х²-16)=(4(х-4))/((х-4)(х+4))=4/(х+4)

в)

(9у³-6у²)/(2-3у)=(3у²(3у-2))/(2-3у)=

=(-(3у²(2-3у)))/(2-3у)= - 3у²

г)

(9х²-4)/(3х-2)=((3х-2)(3х+2))/(3х-2)=

=3х+2

д)

(х²+2х+1)/(х⁴+х³)=((х+1)²)/(х³(х+1)=

=(х+1)/х³

е)

(х²+8х+15)/(х²+3х-10)=

=(х²+3х+5х+15)/(х²-2х+5х-10)=

=((х(х+3)+5(х+3))/(х(х-2)+5(х-2))=

=((х+3)(х+5))/((х-2)(х+5))=(х+3)/(х-2)

2.

(2х+18)/3=0 •3

2х+18=0

2х= -18

х= -18:2

х= -9

3. на фото

у=(х+1)/(х+1)

таблица:

х 0 1

у 1 1