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一、判断题（每小题２分，共１０分）．请在下列各题的括号内，正确的打“〖”，错误的打“∨”．１．ａｍ＋ｂｍ＋ｃ＝ｍ（ａ＋ｂ）＋ｃ是因式分解．（ ）２．７ｐ（ｐ－ｑ）－２ｑ（ｑ－ｐ）＝（ｐ－ｑ）（７ｐ－２ｑ）．（ ）３．ａｘ＋ａｙ＋ｂｘ＋ｂｙ＝（ａ＋ｂ）（ｘ?
First, the judge questions (each small question 2 points, a total of 10 points). Please correct the “〖” in the brackets below the question, the wrong hit “∨”. 1. am + bm + c = m (a + b) + c is factorized. () 2.7p (p-q) -2q (q-p) = (p-q) (7p-2q). () 3. ax + ay + bx + by = (a + b) (x?