Solve the following polynomial equati
posted by Bob .
Solve the following polynomial equation for x : x^2  2( a+2)x + (a + 1)(a + 3).

Well, since the product of the roots is (a+1)(a+3) my first guess would be
(x(a+3))(x(a+1))
= x^2  (a+1)x  (a+3)x + (a+1)(a+3)
= x^2  (2a+4)x + (a+1)(a+3)
= x^2  2(a+2)x + (a+1)(a+3)
tadaaa.