Question

plz solve this question

Answer 1

a²b²x²+b²x-a²x-1=0,

b²x(a²x+1)-1(a²x+1)=0,

(a²x+1)(b²x+1)=0,

if
a²x+1=0,

then
x=-1/a²,

if
b²x+1=0,

then
x=-1/b²

Answer 2

answer is here only for number 55