1. If (√((x+2)^(2 ) +y^2 ))+(√((x−2)^2 +y^2 ))=6
show that when the equation is
simplified, it can be express as
(x^2 /9)+(y^2 /5)=1
2. find the value of n such that the
linear factors of the form x+ay+b
and x+cy+d with integer coefficients
have the product x^2 +5xy+x+ny−n
sir please help