GCF
27r + 36
9(3r+4)
3m3+ 12m2+2m+8
(3m2+ 2)(m + 4)
x2-5x-36
(x + 4)(x - 9)
7a2 - 18a - 9
(7a + 3)(a - 3)
16k2-1
(4k + 1)(4k - 1)
5k + k7
k(5 + k6)
25x3 - 30x2- 20x + 24
(5x2-4)(5x-6)
n2 + 11n + 30
(n + 6)(n + 5)
5x2 + 22x + 8
(5x + 2)(x + 4)
x2 +14x+49
(x+7)2