Factoring

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Which integer is a prime factor of 20?
[removed]8[removed]2
[removed]4[removed]10
  
9.Find the prime factorization of 56.
[removed]2 • 7 • 8[removed]1 • 2 • 2 • 2 • 8
[removed]2 • 2 • 2 • 7[removed]1 • 56
Part 2
Select the best answer from the choices provided. (Each question is worth one point)
10.Find the GCF of 28 and 56.
[removed]16[removed]28
[removed]6[removed]12
11.Find the GCF of 68 and 104.
[removed]68[removed]24
[removed]22[removed]4
12.Factor 2a4b3 without using exponents.
[removed]2 • a • a • a • a • b • b • b[removed]a • a • a • b
[removed]3a • 4b[removed]243ab
13.Factor -45 without using exponents.
[removed]-1 • 3 • 5[removed]-1 • 3 • 3 • 5
[removed]-1 • 3 • 15[removed]3 • 3 • 5
14.Factor -54(a3b)2 without using exponents.
[removed]-1 • 2 • 3 • 3 • 3 • a • a • a • b • b[removed]a • a • a • a • b • b
[removed]-1 • 2 • 3 • 3 • 3 • a • a • a • a[removed]-1 • 2 • 3 • 3 • 3 • a • a • a • a • a • a • b • b
15.Find the GCF of -25a3b4, 45a6b5.
[removed]5a2b3[removed]25a3b4
[removed]5a3b4[removed]5ab
16.Find the GCF of 10ab5, 12a3b4, 16a2b3.
[removed]2ab[removed]2ab2
[removed]ab3[removed]2ab3
17.Find the GCF of 25a3b4, 45a6b5, 50ab.
[removed]5abc[removed]5ab
[removed]25ab[removed]5ab5
18.Simplify 8(a + 2)
[removed]8a + 10[removed]a + 8
[removed]8a + 16[removed]8 + a + 16
Part 3
Select the best answer from the choices provided. (Each question is worth one point)
19.Divide (6a3 - 19a2 + 15a) by (2a - 3)
[removed]3a2 - 5a[removed]2a2 - 5
[removed]3a - 5[removed]3a2 + 5
20.Factor 12a4 + 16a6 using the distributive property.
[removed]4a4(3 + 4a)[removed]4a2(3 + 4a2)
[removed]4a4(3 + 4a2)[removed]4a4(3a + 4a2)
21.Factor 21bc2 – 35c8 using the distributive property.
[removed]7c2(3b – 5c8)[removed]7c2(3b – 5c6)
[removed]7c2(3 – 5c8)[removed]7c2(3b + 5c8)
22.Factor 6x2y + 4xy2 + 3x + 2y by grouping.
[removed](3x2 + 2y)(2x + 1)[removed](3x + 2y2)(2xy + 1)
[removed](3x + 2y)(2xy + 1)[removed](3x + 2y)(2y + 1)
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