To factor the expression \( 4x^2y^5 + 10x^3y^4 \), we first need to determine the greatest common factor (GCF) of the coefficients and the variables.
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Coefficients: The coefficients are 4 and 10.
- The GCF of 4 and 10 is 2.
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Variables:
- For \( x^2 \) and \( x^3 \), the GCF is \( x^2 \) (the lowest power).
- For \( y^5 \) and \( y^4 \), the GCF is \( y^4 \) (the lowest power).
Now we can combine these:
- GCF = \( 2x^2y^4 \).
Thus, the greatest common factor for the expression \( 4x^2y^5 + 10x^3y^4 \) is:
2x²y⁴ (or written as "2 x squared y to the 4th power").