Phép chia đa thức một biến

Home Toán lớp 7 - Sách KNTT Bài 28: Phép chia đa thức một biếnBài tập cơ bản

{"common":{"save":0,"post_id":"5815","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8569","post_id":"5815","mon_id":"1158532","chapter_id":"1158660","question":"Cho $A$<\/span> và $B$<\/span> là hai \u0111a th\u1ee9c c\u1ee7a bi\u1ebfn $x$<\/span> và $B$<\/span> khác \u0111a th\u1ee9c 0. Ta nói \u0111a th\u1ee9c $A$<\/span> chia h\u1ebft cho<\/strong> \u0111a th\u1ee9c $B$<\/span> n\u1ebfu tìm \u0111\u01b0\u1ee3c m\u1ed9t \u0111a th\u1ee9c $Q$<\/span> sao cho<\/p>","options":["A.<\/strong> $A = B.Q$<\/span>","B.<\/strong> $A=B:Q$<\/span>","C.<\/strong> $A=B+Q$<\/span>","D. <\/strong>$A=B-Q$<\/span>"],"correct":"1","level":"1","hint":"Cho $A$<\/span> và $B$<\/span> là hai \u0111a th\u1ee9c c\u1ee7a bi\u1ebfn $x$<\/span> và $B$<\/span> khác \u0111a th\u1ee9c 0. Ta nói \u0111a th\u1ee9c $A$<\/span> chia h\u1ebft cho<\/strong> \u0111a th\u1ee9c $B$<\/span> n\u1ebfu tìm \u0111\u01b0\u1ee3c m\u1ed9t \u0111a th\u1ee9c $Q$<\/span> sao cho $A = B . Q$<\/span> .<\/p>","answer":"\u0110áp án \u0111úng là   A.<\/strong> $A = B.Q$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-02 01:43:33","option_type":"math","len":0},{"id":"8571","post_id":"5815","mon_id":"1158532","chapter_id":"1158660","question":"Cho \u0111\u01a1n th\u1ee9c $A(x)$<\/span> có b\u1eadc là  $m$<\/span> và \u0111\u01a1n th\u1ee9c  $B(x)$<\/span> có b\u1eadc là  $n$<\/span> , v\u1edbi $m,n \\in N$<\/span>. N\u1ebfu \u0111\u01a1n th\u1ee9c $A(x)$<\/span> chia h\u1ebft cho \u0111\u01a1n th\u1ee9c $B(x)$<\/span> thì<\/p>","options":["A.<\/strong> n < m","B.<\/strong> n > m","C.<\/strong> n $\\le$<\/span> m","D.<\/strong> n $\\ge$<\/span> m"],"correct":"3","level":"1","hint":"N\u1ebfu b\u1eadc c\u1ee7a \u0111\u01a1n th\u1ee9c $B(x)$<\/span> không v\u01b0\u1ee3t quá b\u1eadc c\u1ee7a \u0111\u01a1n th\u1ee9c $A(x)$<\/span> thì $A(x)$<\/span> chia h\u1ebft cho $B(x)$<\/span> .<\/p>","answer":"N\u1ebfu b\u1eadc c\u1ee7a \u0111\u01a1n th\u1ee9c $B(x)$<\/span> không v\u01b0\u1ee3t quá b\u1eadc c\u1ee7a \u0111\u01a1n th\u1ee9c $A(x)$<\/span> thì $A(x)$<\/span> chia h\u1ebft cho $B(x)$<\/span> .  ("không v\u01b0\u1ee3t quá" ngh\u0129a là nh\u1ecf h\u01a1n ho\u1eb7c b\u1eb1ng)<\/p>Do \u0111ó:  N\u1ebfu \u0111\u01a1n th\u1ee9c $A(x)$<\/span> chia h\u1ebft cho \u0111\u01a1n th\u1ee9c $B(x)$<\/span> thì  n $\\le$<\/span> m.<\/p>\u0110áp án \u0111úng là    C.<\/strong> n $\\le$<\/span> m<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-02 01:53:29","option_type":"math","len":0},{"id":"8572","post_id":"5815","mon_id":"1158532","chapter_id":"1158660","question":"Cho ba \u0111a th\u1ee9c A, B và Q sao cho A : B = Q và B khác \u0111a th\u1ee9c 0. Khi \u0111ó<\/p>","options":[["A g\u1ecdi là","Q g\u1ecdi là ","B g\u1ecdi là"],["\u0111a th\u1ee9c th\u01b0\u01a1ng","\u0111a th\u1ee9c b\u1ecb chia","\u0111a th\u1ee9c chia"],["\u0111a th\u1ee9c b\u1ecb chia","\u0111a th\u1ee9c th\u01b0\u01a1ng","\u0111a th\u1ee9c chia"]],"correct":[1,0,2],"level":"1","hint":"N\u1ebfu A : B = Q thì A g\u1ecdi là \u0111a th\u1ee9c b\u1ecb chia,, B g\u1ecdi là \u0111a th\u1ee9c chia và Q g\u1ecdi là \u0111a th\u1ee9c th\u01b0\u01a1ng.<\/p>","answer":"\u0110áp án \u0111úng c\u1ea7n n\u1ed1i là<\/p>A g\u1ecdi là - \u0111a th\u1ee9c b\u1ecb chia<\/span><\/p>B g\u1ecdi là -  \u0111a th\u1ee9c chia<\/span><\/p>Q g\u1ecdi là - \u0111a th\u1ee9c th\u01b0\u01a1ng<\/span><\/p>","type":"matching","extra_type":"mat_txt","time":"0","user_id":"131","test":"1","date":"2022-06-02 01:58:24"}]}