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vodka [1.7K]
3 years ago
11

Factor this expression completely and then place the factors in the proper location. Note: Place factors alphabetically!

Mathematics
1 answer:
Usimov [2.4K]3 years ago
5 0

To solve this problem you must apply the proccedure shown below:

1. You have the following expression given in the problem above:

mn - 4m - 5n + 20

2. The first thing you must do to factor the expression is to group the terms, as following:

(mn-4m)+(-5n+20)

3. Now, choose the greatest common factor of each group:

m(n-4)-5(n-4)

4. Now, you need to factor the expression by factoring out the n-4

(m-5)(n-4)

The answer is: (m-5)(n-4)

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