(1)2x²分之5y乘15y³分之6x² (2) y²分之4x²除以y
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(1)2x²分之5y乘15y³分之6x² (2) y²分之4x²除以y³分之2x³
![(1)2x²分之5y乘15y³分之6x² (2) y²分之4x²除以y](/uploads/image/z/16491342-30-2.jpg?t=%EF%BC%881%EF%BC%892x%26%23178%3B%E5%88%86%E4%B9%8B5y%E4%B9%9815y%26%23179%3B%E5%88%86%E4%B9%8B6x%26%23178%3B+%EF%BC%882%EF%BC%89+y%26%23178%3B%E5%88%86%E4%B9%8B4x%26%23178%3B%E9%99%A4%E4%BB%A5y)
5y/2x² × 6x²/ 15y³
=1/y²
4x²/y² ÷ 2x³/y³
=4x²/y² ×y³/2x³
=2y/x
=1/y²
4x²/y² ÷ 2x³/y³
=4x²/y² ×y³/2x³
=2y/x
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