Transcript Factoring Review - Central Dauphin School District

Factoring Review
Jeopardy
Difference Sums &
GCF/
Quadratic
Trinomials & Perfect Differences
Grouping
Form
Squares Of Cubes
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Find the GCF of the
monomials.
4a7b , 28ab
Answer: GCF = 4ab
Find the GCF of the
monomials
2x2y , 9x2y3 , 18xy2
Answer: GCF = xy
Factor
9x2 – 3x = 0
Answer: x = 0 or 1/3
Factor
4a2b + 28ab2 + 14ab
Answer: 2ab(2a + 14b + 7)
Solve for a
12a2 + 3a – 8a – 2 = 0
Answer: -1/4 or 2/3
Factor
x2 + 4x + 3
Answer: (x + 1)(x + 3)
Factor
a2 – 4ab + 4b2
Answer: (a -2b)(a – 2b)=
(a – 2b)2
Solve for w
w(w + 16) = 260
Answer: w = -26 or 10
Factor
18y2 + 9y - 5
Answer: (6y + 5)(3y – 1)
Solve for a
4a3 -18a2 – 10a
Answer: a = -1/2, 0 , or 5
Factor
16s2 – 9t2
Answer: (4s + 3t)(4s – 3t)
Factor
6 – 54d2
Answer: 6(1 + 3a)(1 – 3a)
Factor
16m2 + 48m + 36
Answer: (4m + 6)2 or 4(2m + 3)2
Solve for y
y2 – 16y + 64 = 81
Answer: y = -1 or 17
Solve for x
75x3 = 147x
Answer: x = -7/5 , 0, 7/5
Factor
x3 - 8
Answer: (x – 2)(x2 + 2x + 4)
Factor
3x3 – 3y3
Answer: 3(x – y)(x2 + xy + y2)
Factor
64w3 + 125
Answer: (4w + 5)(16w2 – 20w + 25)
Factor
2t3 – 54s3
Answer: 2(t – 3s)(t2 + 3st + 9s2)
Factor
343a4 + 216ab3
Answer: a(7a + 6b)(49a2 – 42ab + 36b2)
Factor
a4 – b4
Answer: (a2 + b2)(a + b)(a – b)
Factor
x4 – 4x2 - 21
Answer: (x2 + 3)(x2 – 7)
Factor
x4 – 6x2 - 27
Answer: (x2 + 3)(x + 3)(x – 3)
Factor
1 – 16x4
Answer: (1 + 4x2)(1 + 2x)(1 – 2x)
Factor
2x4y – 26x2y – 96y
Answer: 2y(x2 + 3)(x + 4)(x - 4)
Final
Jeopardy
Final Jeopardy
 Decide
how much you want to bet from
your points total.

Solve for x
3x4 + 6x3 – 3x2 – 6x = 0
Answer: x = -2, -1, 0 or 1