八年级数学上册分式的化简56.docx

1、八年级数学上册分式的化简5650abc235a2bc x216x26x83a26an3n2 6a6n 10ab2c 40a2b3c(2x5y)y3 x3y2x22xy2(xy)26x26xc4x24c28x28y25(xy)2 30a3bc 45a2b3c x21x25x47m214mb7b2 4m4b 25ab 50a2b2c3(2x5)y x2y8x28xy10(xy)210x210xc3x23c25x25y24(xy)240abc245a2b2c2 x21x26x52x24xn2n2 6x6n 5ab3c45a3b3c2(3x6y)y2 xy2x22xy6(xy)28y28yb5y25b

2、25x25y22(xy)210a2bc40abc x216x26x82m24mn2n2 10m10n 25a3b40a2b3c(x5)y3 x2y8x28xy2(xy)22x22xc5x25c29x29y23(xy)2 25a2bc 20a2b2c3 x249x212x356a212ab6b2 3a3b 5ab3c 30a2bc2(2x6)y x3y34x24xy5(xy)22y22ya2y22a22x22y25(xy)2 40abc350a2bc x236x211x306m212my6y2 3m3y15abc 35ab3c(2x6y)y x3y210x210xy4(xy)210y210yb5

3、y25b27x27y22(xy)25ab3c 45abc x236x211x307m214my7y2 7m7y 15ab2 35abc(2x4y)y xy4x24xy3(xy)24y24yb4y24b22x22y23(xy)230a2bc3 40ab3c x29x28x154a28ab4b2 4a4b 25a2b3c 45abc(x5y)y x3y34x24xy5(xy)210y210ya3y23a22x22y23(xy)250a3bc 35a2b3c x29x27x126a212ab6b2 2a2b 20abc45abc2(3x4)y2 x3y24x24xy7(xy)22y22yc2y22c

4、29x29y24(xy)2 30abc40a2b3c x264x213x403m26mb3b2 2m2b5a2b 30ab3c(x5)y xy4x24xy4(xy)26x26xa5x25a28x28y22(xy)250ab2c10abc x2100x216x603a26ab3b2 7a7b20ab 40ab3c3(x4y)y2 xy8x28xy8(xy)28x28xc2x22c29x29y23(xy)240abc 25a2b3c x249x210x213m26mb3b2 5m5b 10a2b40a3b2c2(x4y)y xy6x26xy2(xy)210z210zb4z24b26x26y25(x

5、y)2 20a2bc2 25ab3c x225x27x105a210ab5b2 3a3b10a2bc 45ab3c3(2x5)y x3y28x28xy8(xy)22z22zc2z22c25x25y25(xy)2 20ab3c5a2b2c3 x225x28x158x216xy8y2 6x6y 10ab3c40a3bc(3x6)y xy6x26xy3(xy)24y24yb3y23b25x25y23(xy)2 5ab2c15a2b2c x29x28x158x216xb8b2 9x9b 10a2bc30a2bc(2x6)y2 x3y10x210xy6(xy)22z22zc2z22c28x28y24(x

6、y)245abc 10ab2c3 x249x213x425m210mb5b2 5m5b 25a3b40ab2c3(x5)y3 xy10x210xy9(xy)24y24yb4y24b28x28y23(xy)2 40ab2c210abc2 x236x212x367m214mb7b2 10m10b15a2bc 50a3b3c2(3x6y)y xy8x28xy5(xy)22x22xb5x25b25x25y23(xy)2 45ab2c3 30a3b2c3 x236x210x245a210an5n2 5a5n20ab3c50abc2(2x4)y3 xy210x210xy4(xy)24y24ya4y24a22x22y25(xy)2 35ab3c15abc2 x29x26x92a24ay2y2 4a4y20a3bc30a2bc(x6)y3 x2y4x24xy9(xy)26z26zb4z24b26x26y24(xy)2 35a3bc210abc3 x29x28x152a24an2n2 2a2n5a2b 30abc(2x6y)y xy10x210xy8(xy)210x210xb2x22b23x23y25(xy)2