Question

factorise 9x^4-x^2-12x-36. please urgent. i will mark 1st person as brainliest if you will tell me how to mark him​

Answer 1

Answer:

9x^4-(x^2+12x+36)

9x^4-(x+6)^2

(3x^2)^2-(x+6)^2

(3x-x+6)(3x+x+6)

(2x+6)(4x+6)

hope it helps u

please mark as brainliast answer

Step-by-step explanation:

Answer 2

Step-by-step explanation:

9x^4-(x^2 +12x+36)

(3x^2)^2 -(x^2 +2.x.6 +6^2)

(3x^2)^2 -(x+6)^2

{3x^2+x+6}{3x^2-x-6}(using a²-b²=(a+b) (a-b) )

hope it will help you!!!