FOIL
Reverse FOIL
Remove GCF
Box Method
Box or Grouping method
100

(x + 1)(x + 1)  

x2 + 2x + 1

100

x2 + 4x - 45

(x + 5)(x - 9)

100

6x2 + 18x - 60

6(x - 2)(x + 5)

100

4x2 + 4x + 1

(2x + 1)(2x + 1)

100

2x2 + 11x + 5

(2x + 1)(x + 5)

200

(x + 2)(x + 3)

x2 + 5x + 6 

200

x2 + 2x + 1

(x + 1)(x + 1)

200

5x2 + 25x + 30

5(x + 3)(x + 2)

200

2x2 - x - 3

(x + 1)(2x - 3)

200

4x2 - 4x + 1

(2x + 1)(2x - 1)

300

(x + 1)(x - 1)

x2 - 1

300

x2 - 2x + 1

(x - 1)(x - 1)

300

x3 + 2x2 + x

x(x+1)(x+1)

300

2x2 - 7x + 3

(2x - 1)(x - 3)

300

12t2 + 17t + 6

(3t + 2)(4t + 3)

400

(c + 5)(c - 7)

c2 + 2c -35

400

c2 - c -42

(c - 7)(c + 6)

400

x3 + 10x2 +25x

x(x+5)(x+5)

400
3x2 + 4x + 1

(3x + 1)(x + 1)

400

6y2 + 19y + 15

(3y + 5)(2y + 3)

500

(2x - 3)(5x + 4)

10x2 - 7x - 12

500

a2 - a - 90

(a - 10)(a + 9)

500

2x2 - 6x + 4

2(x - 2)(x - 1)

500

2x2 + 9x + 10

(2x + 5)(x + 2)

500

2y2 + 7y + 3

(y + 3)(2y + 1)