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黄冈特高级教师联合编写的数学九年级(上)《课程过关一课一练》(与北师大版教材配套),第一章证明(二)有这样一道题：若一个三角形的三边均满足方程x~2-6x+8=0,则此三角形的周长为__．该题所给出的参考答案是10．笔者认为该答案不够全面,应该还有两个正确答案,现与广大师生商榷．一、题解题目要求推断三角形的周长,而三角形的三边长却没有直接给出,而是间接
The 9th grade mathematics written jointly by the senior teachers of Huanggang (above) “Course Passing a Lesson and Practice” (compared with Beijing Normal University Edition teaching materials), the first chapter proves (2) There is such a question: If a triangle has three sides If the equation x~2-6x+8=0 is satisfied, the perimeter of this triangle is __. The reference answer given in this question is 10. The author believes that the answer is not comprehensive enough, there should be two correct answers, now with the majority of teachers and students. First, the title of the solution asks to infer the perimeter of the triangle, but the three sides of the triangle are not given directly, but indirectly.