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28(3 + 1)

Q: What is the expression of 84 plus 28 using greatest common factor?

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2(1 + 5)

It is 7*(1 + 2).

One place where this is used is to simplify fractions: you need to find the greatest common factor, then divide top and bottom by this greatest common factor.Also, in factoring expressions - you can take out the greatest common factor. For example (using "^" for power): 5x^2 + 10x has the greatest common factor 5x; so this can be taken out as a common factor, resulting in 5x(x + 2).

The GCF is 2. The LCF is 1. The difference is 1.

The GCF is 3. No exponents needed.

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7(2x + 9)

It is 6*(3 - 2).

It is 12*(5 - 3).

13(2x - 1)

2(1 + 5)

It is 7*(1 + 2).

It is 9*(4x + 1).

It is 5*(2x - 5y).

The greatest common prime factor of 10 and 20 is 5.

5

the greatest com man factor is 33