约分4x^2y^4/8y^8
问题描述:
约分4x^2y^4/8y^8
答
约分4x^2y^4/8y^8
原式=(4x^2y^4)/(8y^8)
=(4y^4·x²)/(4y^4·2y^4)
=x²/2y^4