Question

Factor. 9x^4-x^2-9x^2y^2+y^2 please help

Answer 1

9x\[(9x ^{4} - 9x ^{2}y ^{2}) - ( x ^{2} - y ^{2}\]

Answer 2

\[9x ^{2} (x ^{2} - y ^{2}) - ( x ^{2} - y ^{2} )\]

Answer 3

\[(9x ^{2} -1) (x ^{2} -y ^{2})\]

Answer 4

Is there any other way to format because I doubled check and I am submitting and it is saying it is incorrect... but I did verify so weird

Answer 5

\[(9x - 1) (9x +1) (x-y) (x+y)\]