Factor out the GCF: 21c^9-28c^6

Select one:

a. 7c^3 (3c^6-4c^3)

b. 7c^6 (3c^3-4)

c. 7c (3c^8-4c^5)

d. 7 (3c^9-4c^6)

Question

Mathematics

Guest

9 April, 15:16

Factor out the GCF: 21c^9-28c^6

Select one:

a. 7c^3 (3c^6-4c^3)

b. 7c^6 (3c^3-4)

c. 7c (3c^8-4c^5)

d. 7 (3c^9-4c^6)

+4

Answers (1)

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Summer Hunt · Answer 1

To factor you find out what is common. 7 can go into both. Also c^6, so bring those outside:

7c^6 (?-?)

Now to find what goes in, simply remove 7c^6 from both 21c^9 and - 28c^6, which would be:

7c^6 (3c^3-4) so Option B).

Factor out the GCF: 21c^9-28c^6Select one:a. 7c^3 (3c^6-4c^3)b. 7c^6 (3c^3-4)c. 7c (3c^8-4c^5)d. 7 (3c^9-4c^6)

Factor out the GCF: 21c^9-28c^6

Select one:

a. 7c^3 (3c^6-4c^3)

b. 7c^6 (3c^3-4)

c. 7c (3c^8-4c^5)

d. 7 (3c^9-4c^6)