Question

Factorise: 6x^5-22x^2-8x answer it quickly.

Answer 1

6x^5 - 22x^2 - 8x = 2x( 3x^4 - 11 - 4)

                             = 2x(3x^4 -15) = 2x{3(x^4 - 3)}

                             = 6x(x^4-3)