Answer :
(2x^2+20x+32)/x^2-2x-80
2(x^2+10x+16)/x^2-2x-80
2(x^2+8x+2x+16)/x^2-10x+8x-80
2[(x+8)(x+2)]/(x+2)(x-10)
2(x+8)/(x-10)
2(x^2+10x+16)/x^2-2x-80
2(x^2+8x+2x+16)/x^2-10x+8x-80
2[(x+8)(x+2)]/(x+2)(x-10)
2(x+8)/(x-10)