firemath
Full Member
- Joined
- Oct 29, 2019
- Messages
- 602
Wow. That's intense. Someone likes factoring.?Begin and reorder the terms:
rg + g^2 - 8g - 3r + 15 =
g(r + g - 8) - 3(r - 5) =
g(r + g - 5 - 3) - 3(r - 5) =
g(r - 5 + g - 3) - 3(r - 5) =
g(r - 5) + g(g - 3) - 3(r - 5) =
g(r - 5) - 3(r - 5) + g(g - 3) =
(r - 5)(g - 3) + g(g - 3) =
(g - 3)(r - 5 + g) =
(g - 3)(r + g - 5)