Answer :

The greatest common factor of all the given algebra terms is; 3x²

How to find the greatest common factor?

To get the greatest common factor, we have to first find the factors of each term;

Factors of 3x⁴ are; 3x² and x²

Factors of 15x³ are 5, 3x² and x

Factors of 21x² are 7 and 3x²

Thus, the greatest common factor of all terms is 3x²

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Rewritten by : Barada

3x⁴=3x²
15x³=5*3x²x
21x²=7*3x²

Greatest common factor 3x²