[" Find the zero of the polynomial in each of the following cases: "],[[" (i) "p(x)=x+5," (ii) "p(x)=x-5," (iii) "p(x)=2x+5],[" (iv) "p(x)=3x-2," (v) "p(x)=3x," (vi) "p(x)=ax,a!=0],[" (vii) "p(x)=cx+d,c!=0,c," d are real numbers."]]