/ ______________\ / ______________\ | / 2 | | / 2 | | \/ -110 + 20*y | | \/ -110 + 20*y | |x + -----------------|*|x - -----------------| \ 5 / \ 5 /
(x + sqrt(-110 + 20*y^2)/5)*(x - sqrt(-110 + 20*y^2)/5)
2 2 -22 - 5*x + 4*y ----------------- 4
(-22 - 5*x^2 + 4*y^2)/4