Question

3y+9/y^2-9
b^2-4/6+3b
 a^2+10a+25/3a+15
 x^2-8x+16/x^2-16

Answer 1

3(у + 3) / (у-3)(у+3) =3 / (у-3)
(b-2)(b+2) / 3(2+b) =(b-2) / 3
(a+5)² / 3(a+5) = (a+5) / 3
(x-4)² / (x-4)(x+4) = (x-4) / (x+4)