Question

(i) 9x4 – x2 - 12x - 36​

Answer 1

Answer:

$(3x^{2}+x+6 )(3x^{2}-x-6 )$

Step-by-step explanation:

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

where $a=3x^{2}$ and $b= x+6$

$(3x^{2}+x+6 )(3x^{2}-x-6 )$

Hope it helps :)