期末复习-因式分解练习题汇总.pdf

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1、新东方顺义马媛媛老师销魂的因式分解221.2x−11x−21=2.5x−7x−6=223.15x+x−2=4.6x−25x+4=25.(x−4)(x−5)−42=6.(x−5)−(5−x)−42=227.x−7x−30=8.9x−30x+25=229.7x−19x−6=10.−20x+9x+20=24211.36x+39x+9=12.9x−35x−4=4213.9x−37x+4=2214.7(x−1)+4(1−x)(y+2)−20(y+2)=22322315.xy−2xy−3x−y−2y−1=16.20abc−9abc−20abc=3317.

2、(x−2)(x−1)−(x−2)(x−1)=32222218.a−4ab−a−2b=19.1−a−b+ab=223220x(y−z)+y(z−y)=21.(x−y)−4(x−y)(a+b)=323322.ab−ab−a+1=23.(x−1)(x+2)+(1−x)(2+x)=22222224.xy−9x−4y+36=25.a−2b−2a+8b=222422426.x−y+2yz−z=27.a−2ab+b=2222228.(1−xy)−(x−y)=29.a+b+c−2ab−2bc+2ac=222230.4(a+b)−4a−4b+1=31.x−y−

3、2yz−z=22232.a−ab−2a+b+1=33.ab+2bc−ac−b−c=22234.b−x+a(a+2b)=35.x+2xy−2x−2y+1=22222236.xy−2xy−y+x+2y−1=37.4x+y−a−b+4xy+2ab=2238.x+14x+49=39.9x+6x+1=新东方顺义马媛媛老师2240.9x−66x+121=41.−36x−1−12x=42.9a2−24ab+16b2=43.1x2+4xy+4y2=25159224422444.9x−24xy+16y=45.a+2ab+b=22246.(a+2b)+10(a+

4、2b)+25=47.49(a−b)−42(a−b)x+9x=32248.−5a+10a−5a=49.x−81=22250.16x−49=51.4a−25b=22252.1−4xy=53.2−18x=322254.16x−4x=55.a−4ab=22256.16−(2x−3y)=57.(2x−1)−(4x+3)=2458.4(x+2y)−25=59.x−81=2260.5x+16x+12=61.12x−29x+15=222262.12x−25xy+12y=63.20a+42ab+16b=222264.10x−3xy−18y=65.11xy+4x

5、y−7=2266.−8−6x+5x=67.−20x−9x+20=32232268.15abc−22abc+8abc=69.2x−x−xy+y−y=222270.xy+2xy−3x−y+2y−1=71.x+4xy+4y−3x−6y+2=2222272.(x+3x)−8(x+3x)−20=73.(x−5x+8)(x−5x+2)+8=22274.(x+5x+7)(x+7x+7)−3x=75.(x−3)(x+2)(x+4)(x−1)+24=2276.(x+2)(x+4)(x+6)(x+12)+3x=77.2(x+1)−(x+79)=42278.4x−

6、7x−36=79.2(a−2b)−a+2b−15=2280.2(x−2y)+3(2y−x+2)−15=81.a+(a+1)(a+2)−4=532282.9x−82x+9x=83.(x−9)(x−1)+(x−3)(x+3x+6)=