In simplifying I'm unsure of when to perform reverse factoring.
a^2+a(2+a)-2
a^2+2a+a^2-2
2a^2+2a-2
2(a^2+a-1)
Please advise.
a^2+a(2+a)-2
a^2+2a+a^2-2
2a^2+2a-2
2(a^2+a-1)
Please advise.
Actually I don't see any other way of doing this one. This might not be the case for some other quadratics:
a^2 + 3a + 2 =
a^2 + a + 2a + 2 =
a(a + 1) + 2(a + 1) =
(a + 1)(a + 2)
