y²-9/3+y=(y+3)(y-3)/3+y=y-3
x-5/25-x²=x-5/(5-х)(х+5)=-(5-х)/(5-х)(5+х)=-1/х+5
1) у - 3;
2) - 1/(5+х)
Объяснение:
(у² - 9)/(3 + у) = (у - 3)(у + 3)/(3 + у) = у - 3;
(х - 5)/(25 - х²) = (х - 5)/((5 - х)(5 + х)) = - (5 - х))/((5 - х)(5 + х)) = - 1/(5+х).
y²-9/3+y=(y+3)(y-3)/3+y=y-3
x-5/25-x²=x-5/(5-х)(х+5)=-(5-х)/(5-х)(5+х)=-1/х+5
1) у - 3;
2) - 1/(5+х)
Объяснение:
(у² - 9)/(3 + у) = (у - 3)(у + 3)/(3 + у) = у - 3;
(х - 5)/(25 - х²) = (х - 5)/((5 - х)(5 + х)) = - (5 - х))/((5 - х)(5 + х)) = - 1/(5+х).