Factoring when a=1
x2+6x+8
(x+4)(x+2)
x2-16
(x-4)(x+4)
3x2-2x-5
(3x-5)(x+1)
x2-5x-14=0
7,-2
x2+2x=3
1,-3
x2-2x-24
(x-6)(x+4)
x2-49
(x-7)(x+7)
2x2+3x+9
(2x-3)(x+3)
2x2+2x-12=0
2,-3
x2+8x=-12
-2,-6
x2+5x-36
(x+9)(x-4)
x2-121
(x-11)(x+11)
3x2-8x+4
(3x-2)(x-2)
2x2-3x-5=0
5/2,-1
x2-8x=48
12,-4
x2-13x+42
(x-7)(x-6)
x2+100
DNF
5x2+19x+12
(5x+4)(x+3)
2x2+3x-20=0
5/2,-4
x2-8x+21=6
5,3
x2-15x-54
(x-18)(x+3)
x2-169
(x-13)(x+13)
7x2+53x+28
(7x+4)(x+7)
2x2-7x-3=0
7+73/4
x2+12x=-20
-2,-10