1. 5.5 dos doc group.notebook October 08, 2012
GCF ­
2x4 ­ 4x3 + 8x2 10ab3 ­ 15a2b2
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2. 5.5 dos doc group.notebook October 08, 2012
Difference of Squares
x2 ­ 25 (x ­ 5)(x + 5)
y2 ­ 16 (x ­ 4)(x + 4)
4x2 ­ 25 (2x ­ 5)(2x + 5)
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3. 5.5 dos doc group.notebook October 08, 2012
Difference of Squares
a2 ­ b2 = (a ­ b)(a + b)
x2 ­ 9
3x5 ­ 48x
25x2 ­ 16a2
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4. 5.5 dos doc group.notebook October 08, 2012
Difference and Sum of Cubes S
a3 ­ b3 = (a ­ b)(a2 + ab + b2) O
A
a3 + b3 = (a + b)(a2 ­ ab + b2)
P
y3 ­ 1 8u3 + v3
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5. 5.5 dos doc group.notebook October 08, 2012
Factor by Grouping
4(x + 2) ­ y(x + 2)
10q2 ­ 5q + 2qt ­ t 3xy +2y ­ 6x ­ 4
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6. 5.5 dos doc group.notebook October 08, 2012
x2 + 8x + 16
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