Factor GCF
ABC
Box
GCF first
Special Cases
100

10x+5y

5(2x+y)

100

x2+5x+6

(x+3)(x+2)

100

2x2+3x+1

(2x+1)(x+1)

100

2x2+12x+16

2(x+4)(x+2)

100

x2-9

(x+3)(x-3)

200

6a2  + 3a

3a(2a+1)

200

x2+3x-18

(x+6)(x-3)

200

2x2+7x+3

(2x+1)(x+3)

200

3x2+3x-90

3(x+6)(x-5)

200

x2-10x+25

(x-5)2 or (x-5)(x-5)

300

5b2+30b

5b(b+6)

300

x2-12x+27

(x-3)(x-9)

300

3x2-x-2

(3x+2)(x-1)

300

10x2-4x-6

2(5x+3)(x-1)

300

4x2-4x+1

(2x-1)2 or (2x-1)(2x-1)

400

36x2 + 48x3

12x2(3+4x)

400

x2-5x-50

(x-10)(x+5)

400

4x2-11x-3

(4x+1)(x-3)

400

8x2-24x+18

2(2x-3)(2x-3)

400

x2-81

(x-9)(x+9)

500

70x3 - 35x2 + 5x

5x(14x2-7x+1)

500

x2-8x+7

(x-7)(x-1)

500

6x2-13x+5

(3x-5)(2x+1)

500

45x2-20

5(3x-2)(3x+2)

500

25x2+30x+9

(5x+3)2 or (5x+3)(5x+3)

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