试题与答案

当x=2时,代数式ax3﹣bx+1的值等于﹣17,那么当x=﹣1时,代数式12a

题型:填空题

题目:

当x=2时,代数式ax3﹣bx+1的值等于﹣17,那么当x=﹣1时,代数式12ax﹣3bx3﹣5的值等于(    ).

答案:

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