Factoring trinomials when a=1
Factoring trinomials when a>1
Factor using the GCF
Factor completely
Factoring he difference of two perfect squares
100

Factor into two binomials: 

x2+10x+25

(x+5)(x+5)

100

Factor 

2x2-7x+6

(2x-3)(x-2)

100

Factor 

3x2-12x

3x(x-4)

100

Factor completely: 

a2b2-144a2

a2(b+12)(b-12)

100

Factor: 

x2-16

(x+4)(x-4)

200

Factor into two binomials: 

x2-12x+27

(x-9)(x-3)

200

Factor 

9x2+6x+1

(3x+1)(3x+1)

200

Factor: 

x4y7- 6x5y7

x4y7(1 - 6x)

200

Factor completely: 

x4-625

(x+5)(x-5)(x2+25)

200

Factor: 

9-x2

(3+x)(3-x)

300

Factor into two binomials: 

x2+2x-24

(x+6)(x-4)

300

Factor 

2x2-x-6

(x-2)(2x+3)

300

Factor:

 3x2 + 9x + 18

3(x2+3x + 6)

300

Factor completely: y4-81

(y^2+9)(y+3)(y-3)

300

25y2-4k2

(5y+2k)(5y-2k)

400

Factor into two binomials: 

x2-5x+6

(x-3)(x-2)

400

Factor 

4y2+12y+9

(2y+3)(2y+3)

400

Factor: 

4ab2-12a2b

4ab(b-3a)

400

Factor completely: 

2x3+14x2-60x

2x(x+10)(x-3)

400

(1/4)x2-(49/25)

(1/2x-7/5)(1/2x+7/5)

500

Factor into two binomials:

 y4- 7y-18

(y^2-9)(y^2-2)

500

Factor: 

ax2-bx-ax+b

(x-1)(ax-b)

500

36x4- 72x5y

36x4(1 - 2xy)

500

Factor completely: 

80-5d2

5(4+d)(4-d)

500

x2+100

Can not be factored because of the plus sign.