" s."ln x=(x+x^(2)-12x+20)=0" ) and "={x:x^(2)+5x-14=0}," then "X-Y=

If X=(x:x^(2)-12x+20=0) and Y=(x:x^(2)+5x-14=0) , then X-Y=

x^(18) + x^(12)=0, x^(20) + x^(14)= 0

(i) x^(2) - 5x-14 = 0 (ii) 2y^(2) +11y + 14 = 0

which one of the following sets has elements as odd positive integers (a) S={x in R|x^(3)-8x^(2)+19x-12=0} b) S={x in R|x^(3)-9x^(2)+23x-15=0} c) S={x in R|x^(3)-7x^(2)+14x-8=0} d) S={x in R|x^(3)-12x^(2)+44x-48=0}