Factoring trinomials
k3+2k2-5k-10
(k+2)(k2-5)
x2-25
(x+5) (x-5)
3x3-21x2+4x-28
(3x2+4)(x-7)
36 - x2
(6-x) (6+x)
c2d+3c2-7d2-21d
(c2-7d)(d+3)
25x2 - 49
(5x-7)(5x+7)
Rearrange terms first:
uv-u-u2+v
(-u+v)(u+1)
64m4-9n2
(8m2-3n)(8m2+3n)
Rearrange terms first:
12m2+3m+28mn+7n
(3m+7n)(4m+1)
72y4-18y2
18y2(2y+1)(2y-1)