問題詳情
3. ( ) 利用十字交乘，因式分解 2x2＋7x－4，過程如下:
所得結果，可寫成:
(A) (2x＋4)(x－1)
(B) (2x－1)(x＋4)
(C) (2x＋1)(x－4)
(D) (2x－4)(x＋1)
參考答案
無參考答案
內容推薦
- 7x + 40 = 9x − 54，x = ？(A) 94 (B) 47 (C) 7 (D) -7
- 【題組】作者透過在海上向前不斷飛行的海燕形象，以下成語與詩中的海燕最無關聯？(A)風雨晦明 (B)櫛風沐雨 (C)風雨不改 (D)風雨無阻。
- 某位史家指出：中國現代史上，有一位領袖領導的政府，為中國建立了一個現代國家的上層管理階層；而另一位領袖領導的政權，則建立了以農村為基礎的下層社會經濟秩序。這兩位領袖最可能是下列何者？ (A)洪秀
- （ ）下列何者是－10x2＋31x－15 與 10x2＋19x－15 的公因式？(A) 2x＋5 (B) －2x＋5 (C) 5x－3 (D) 5x＋3
- （ ）若方程式(3x＋1)(x＋6)＝1，則 3x＋1＝1 或x＋6＝1。(A)O(B)X(C)(D)
- （ ）有兩個數 A、B，若 AB＝0，得 A＝0 或 B＝0。(A)O(B)X(C)(D)
- 【題組】除了擬人法，詩中並且使用對比修辭，請問下列對比組合何者錯誤？(A)腳踏車－電線桿 (B)花朵－小鴨 (C)小鴨－海燕 (D)海燕－小妹妹
- （ ）x 的一元二次方程式 ax2＋bx＋c＝0 中，當b2－4ac＝0 時，此方程式無解(無實數解)。(A)O(B)X(C)(D)
- 下列何者立體圖形的上視圖與右視圖相同？(A) (B) (C) (D)
- 將一袋糖果平分給全班同學，如果每人分 6 顆，則剩下32 顆；如果每人分 8 顆則不夠 24 顆，設糖果有 x 顆，則下列式子何者正確？(A) 6x + 32 = 8x − 24(B) 6x
內容推薦
- Curtis is a man who you can’t trust. What he really did was _____ the opposite of what he said.(
- The manager resigned _____ , which left everyone in the company in shock.(A) miraculously (B) une
- Passage A Toys play an essential part in many people’s childhood. Some of our best memories even co
- Passage B In a society that places so much emphasis on “making it,” we fail to recognize that what l
- The beauty of the scenery is indeed _____ description. I can hardly use words to depict its magn
- III. Reading comprehension 20% Choose the best answer for each questionPassage A By definition, en
- 【題組】(A) deal with (B) deal (C) get along with (D) get along
- 【題組】From the author’s viewpoint, who should take the responsibility of environmental protection?
- 【題組】(A) go ahead (B) go a long way (C) go too far (D) go around
- 【題組】What is the ideal process of making environmental decisions?(A)It should be done at the gove
- 【題組】Who should still play a vital role in establishing and upholding environmental protection st
- 【題組】(A) For one thing (B) After all (C) For example (D) Above all
- 【題組】(A) cooperation (B) coordination (C) geometry (D) geology
- 【題組】The word stakeholders probably means _____.(A) a group of members (B) schools (C) government
- Passage B To understand the nature of the liberal arts college and its function in our society, i
- 【題組】The argument of this passage is based on the writing mode of _____.(A) comparison and contra
- 【題組】Liberal arts education is intended _____.(A)to give further training to talented artists(B)
- 【題組】This passage seems to imply that _____.(A)professional training is the only way that improve
- 【題組】In the second paragraph, the underlined They may refer to the following except _____.(A)inte
- 右圖反映了中共政權在某一時期的國家發展路線，圖中的標語是：「多出鋼快出鋼，澆死美國狼。」這是那一時期的宣傳品？ (A)抗美援朝 (B)大躍進 (C)文化大革命 (D)改革開放
- 依現行制度，地方自治法規牴觸憲法者無效，關於有無牴觸發生疑義時，應如何處理？(A)由中央主管機關審查並撤銷之 (B)提起行政訴訟並由法院進行審查(C)聲請司法院就爭議事項作出解釋 (D)由立法院
- 若小欣今年的年齡為 x 歲，父親今年的年齡為 50歲。兩年後，父親的年齡是小欣的年齡的 3 倍少 5歲，則依題意可列出下列哪一個方程式？(A) 3（x＋2）－5＝52 (B) 3x－5＝52(C
- In _____, the poor mother begged the doctor to save her dying baby by all means possible.(A) intr
- The world changes so rapidly that no one can accurately predict the future trend. Faced with the
- _____ is also an important part of schooling. If a child stays home to study by himself, he may