CBSE Math Board Papers Solutions 2007
(i) All questions are compulsory.
(ii) The question paper consists of 25 questions divided into three sections– A, B and C. Section A comprises of seven questions of 2 marks each, Section B comprises of twelve questions of 3 marks each and Section C comprises of six questions of 5 marks each.
(iii) All questions in section A are to be answered in one word, one sentence or as per the exact requirement of the question.
(iv) In question on construction, the drawings should be neat and exactly as per the given measurements.
(v) Use of calculators is not permitted.
Section A
Questions 1 to 7 carry two marks each.
Question 1 ( 2.0 marks)
Find the L.C. M. of x3 + x2 + x + 1 and x4 − 1.
Sol
Hence, L.C.M. of x3 + x2 + x + 1 and x4 − 1 is
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