Final answer:
To factor the expression x⁴y + x²y⁵ completely, you can factor out the common factors x²y.
Step-by-step explanation:
To factor the expression completely: x⁴y + x²y⁵, we can find the common factors in both terms and factor them out. In this case, we can factor out x²y from both terms:
x⁴y + x²y⁵ = x²y(x² + y⁴)
So the expression can be completely factored as x²y(x² + y⁴).