Question

factorise x(x+2)(x+4)+4x+8​

Answer 1

x(x+2)(x+4)+4x+8=0

x(x^2+4x+2x+8)+4x+8=0

x^3+6x^2+8x+4x+8=0

x^3+6x^2+12x+8=0

x^2(x+6)+4(3x+2)=0

(x^2+4)(x+6)(3x+2)=0

(x^2+4)=0,(x+6)=0,(3x+2)=0

x=-2,2,-6,-2/3

hopes helps you dear friend