Question

Factorize 9x4- x2- 12x- 36

Answer 1

Answer:

The required factors are

$3x^2+x+6\:\:and\:\:3x^2-x-6$

Step-by-step explanation:

Formula used:

$a^2-b^2=(a+b)(a-b)$

Now,

$9x^4-x^2-12x-36\\\\=9x^4-[x^2+12x+36]\\\\=(3x^2)^2-(x+6)^2\\\\=(3x^2+x+6)(3x^2-(x+6))\\\\=(3x^2+x+6)(3x^2-x-6)$

Answer 2

here is the answer . plzzz mark it as brainliest