(完整版)因式分解--十字相乘法练习题含答案

2022-05-02 17:06:50   文档大全网     [ 字体: ] [ 阅读: ]

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因式分解,整版,乘法,练习题,十字


十字相乘法因式分解练习题

1x

3x4x21 2

2

3x2



2x7x6

2





4x2x15

2





5x4

6x2

8



7x2

3xy2y2





9x2

4x3



11y27y12



13x2

x20



15p25p36



17x4

x2

20





6(ab)2

4(ab)3 8x43x328x2



10a2

7a10

12q2

6q8

14m2

7m18

16t2

2t8

18a2x2

7ax8






19a9ab14b

22



20x11xy18y

22

21xy5xy6x

233x11x10 2

2222



22a4a12a

32



242x7x3

2



256x2

7x5



272x215x7



295x27x6



313a2b217abxy10x2y2



334n2

4n15



3510x2

21xy2y2





37(x25x3)(x2

5x2)6



265x26xy8y2



283a2

8a4

305a2b2

23ab10

324x4y25x2y29y2



346l2

l35

368m222mn15n2



38(x1)(x2)(x3)(x4)24




答案:1(x1)(x2)2(x1)(x6)3(x3)(x7)4(x3)(x5) 5(x4)(x2)6(ab1)(ab3)7(xy)(x2y)

8x(x4)(x7)9(x1)(x3)10(a2)(a5)11(y3)(y4) 12(q2)(q4)13(x4)(x5)14(m2)(m9)15(p4)(p9) 16(t2)(t4)17(x4)(x5)18(ax1)(ax8)19(a2b)(a7b) 20(x2y)(x9y)21x(y1)(y6)22a(a2)(a6) 23(x2)(3x5)24(x3)(2x1)25(2x1)(3x5) 26(x2y)(5x4y)27(2x1)(x7)28(a2)(3a2) 29(x2)(5x3)30(5ab2)(ab5)31(3ab2xy)(ab5xy) 32y(x1)(2x3)(2x3)33(2m3n)(2m5n)34(2l5)(3l7) 35(10xy)(x2y)36(2m3n)(4m5n)

37(x1)(x4)(x5x3)38(x3)(x2)(xx8)

2

2

2

2

22

2

22

2




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