减去-2x等于6x2+3X-9的代数式是( )A.6X立方-9 B.6X立方+5X-9 C.-6X立方-5X+9 D.6X立方+X-9请务必在二十四小时之内回复!Thank you very moch

问题描述:

减去-2x等于6x2+3X-9的代数式是( )A.6X立方-9 B.6X立方+5X-9 C.-6X立方-5X+9 D.6X立方+X-9
请务必在二十四小时之内回复!Thank you very moch