化简:根号(4y^5)-(4xy^4)+(x^2y^3)(y>1/2x)

问题描述:

化简:根号(4y^5)-(4xy^4)+(x^2y^3)(y>1/2x)


√4y^5-4xy^4+(x²y³)
=√y³(4y²-4xy+x²)
=√y³(2y-x)²
∵y>1/2x且y≥0
∴2y-x>0
∴原式=y(2y-x)√y