Question 395069
15cp-[(c-p)(c-p)]/(c-p)(c+p)
15cp-(c^2-cp-cp+p^2)/(c-p)(c+p)
15cp-(c^2-2cp+p^2)/(c-p)(c+p)
15cp-c^2+2cp-p^2/(c-p)(c+p)
17cp-c^2-p^2/(c-p)(c+p)