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题目 #21088

UUID
dc74da05-f44a-43e5-984b-15648e6b17b4
来源
人教版/七下/2026江苏七年级期末数学试卷+答案390.pdf 第 3 页,bbox [30.0, 581.99, 168.5, 634.68]
题型 / 学科
comprehensive / math / SENIOR
知识树
KT_SENIOR_MATH_STANDARD
难度
难度 3 / 5 中等 · 多步骤
QA 状态
PUBLISHED 重试 0 次,得分 0.950
最终题 ID
9872

最终题干渲染(f_body 预览)

求下列各式中x的值:
(1)\(8x^{3}\)+ 27 = 0;
(2)(x −1)^{3}= 64.

答案 / 解析

答案(f_answer)

(1) x = -1.5; (2) x = 5

解析(f_ways)

(1) 由\(8x^{3}\)+ 27 = 0 得\(8x^{3}\)= -27,故\(x^{3}\)= -27/8,开立方得 x = -3/2 = -1.5。 (2) 由 (x−1)^3 = 64 得 x−1 = 4,故 x = 5。

原图与资产(0)

该题没有裁出图片资产

审计记录

阶段审计器结果得分依据(简短)
STRUCTURE structure-auditor PASS 1.000
FORMULA formula-auditor PASS 1.000
KNOWLEDGE knowledge-auditor WARN -
VISION vision-auditor PASS 0.900
SOLVER blind-solver PASS 1.000
CRITIC critic PASS 1.000
SYMBOLIC symbolic-auditor WARN 0.500
COHERENCE coherence-auditor FAIL 0.900
QUALITY_GATE quality-gate FAIL 0.950
SOLVER blind-solver PASS 1.000
CRITIC critic PASS 1.000
COHERENCE coherence-auditor PASS 1.000
SYMBOLIC symbolic-auditor PASS 1.000
AUTO_REPAIR_ATTEMPT answer-repair PASS 1.000
AUTO_REPAIR answer-repair PASS 1.000
VISION vision-auditor PASS 0.950

知识点(0)

无

正式题库记录(t_question.f_id=9872)

f_qkey
496345740eb6bc416cff4be72b0b3730
f_style / 难度
4 / 2
入库题干
求下列各式中x的值:
(1)\(8x^{3}\)+ 27 = 0;
(2)(x −1)^{3}= 64.
入库答案
(1) x = -1.5; (2) x = 5
入库解析
(1) 由\(8x^{3}\)+ 27 = 0 得\(8x^{3}\)= -27,故\(x^{3}\)= -27/8,开立方得 x = -3/2 = -1.5。 (2) 由 (x−1)^3 = 64 得 x−1 = 4,故 x = 5。

事件

时间阶段级别消息
2026-09-24 22:41:02PUBLISHINFO已发布 t_question.f_id=9872 qkey=496345740eb6bc416cff4be72b0b3730
2026-09-24 22:41:02QAINFOQA: PASS (score=0.950)
2026-09-24 22:35:53FORMULAWARN公式转换未确认,保留原文本: sub_2
2026-09-24 22:34:27FORMULAWARN公式转换未确认,保留原文本: sub_1