论文部分内容阅读
(满分100分.时间100分钟)一、选择题(每小题3分,共18分)1.下列各题中的因式分解(在实数范围内),完全正确的是(A.x七9x48二(劣七1)(x七8)B一4“2十4。卜一(2,l+ 1)2C4气9x阵8=x月se%七8x阵802(x七1)一8(x七l) =(戈屯1)(xZ一8)=(x+1)(x一l)(x2--8) a a aa5.下列图形中一定相似的
(Out of 100 points. Time 100 minutes) 1. Multiple-choice questions (3 points for each question, 18 points in total) 1. The factorization in the following questions (in the real number range) is completely correct (Ax seven 9x48 two (inferior seven 1) (x seven eight) B one 4 "two ten four. Bu one (2, l + 1) 2C4 gas 9x array 8 = x month se% seven 8x array 802 (x seven 1) one eight (x seven l) = (Goto1) (xZ-8) = (x+1) (x-1) (x2--8) aa aa5. The following figures must be similar