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Factors aremultiplicativeterms (i.e., they multiply into all the terms). The easiest way to see this is by example.
Example 1:
a(b+cd)
a is a factor and (b+cd) is a factor
Example 2:
x2 - 9 = (x-3)(x+3)
(x-3) is a factor and (x+3) is a factor
Hopefully you are beginning to notice you can always wrap parenthesis around a factor without altering the order of operations.
Example 3:
2a(b)(9n-x)+8
This is a trick one, but you can factor out a 2:
2a(b)(9n-x)+8 = (1)(2)a(b)(9n-x)+(4)(2) = (2)(ab(9n-x)+4)
The factors are: 2 and (ab(9n-x)+4)
Example 4:
If that +8 wasn't on example 3, what would the factors be?
2a(b)(9n-x)
They would be:
2, a, b, and (9n-x)
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Where do you use the common factor in an expression consisting of various terms?
How do you determin the common factors in an expression.
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Transcription factors are proteins that control the activity of genes by binding to enhancers, which are specific DNA sequences that enhance gene expression. By binding to enhancers, transcription factors can either activate or repress the transcription of genes, thereby regulating gene expression.
