1) m+2/4m-1/m+4 = (m+2)/(4m-1) * (m+4)2) x/x+y+y/x-y = (x^2)/(x^2 - y^2) + (y^2)/(x^2 - y^2) = (x^2 + y^2)/(x^2 - y^2)
1) m+2/4m-1/m+4 = (m+2)/(4m-1) * (m+4)
2) x/x+y+y/x-y = (x^2)/(x^2 - y^2) + (y^2)/(x^2 - y^2) = (x^2 + y^2)/(x^2 - y^2)