Sagot :
1. f² - 4 = ( f+2)(f-2)
2.4g² - 9 = (2g+3)(2g-3)
3. b² - b - 6 = (b-3)(b+2)
4.a² +3a+2 = (a+1)(a+2)
5.b²-6b+9 = (b-3)²
6.c²+9c+20 = (c+4)(c+5)
7.f²-3f-18 = (f-6)(f+3)
8.m²-3m+2 = (m-2)(m-1)
9.n²+11n+10 = (n+2)(n+10)
I factor it using AC Method.Diko alam sa 10,Hope it helps<3