整式的加減運(yùn)算200道-資料下載頁
2025-04-17 01:49本頁面
【正文】 ]．55.(7y2)+(4y)(y2)(+5y)+(8y2)+(+3y)．+5mn2mn+3m2n6mn28mn．57.(m+1)(n+m)；[5m(2m1)]．｛3x[4x2(3x2x)+(xx2)]｝．(7xy2z)｛[4x(xyz)3x+z]x｝．61.(+3a)+(5a)+(7a)+(31a)(+4a)(8a)．(a2a)+(a2a+1)(1a4+a3)．+2x313x22x2x3+3[x+4(1x)x2]2(4x21)65.(x+5+2x46x3)(3x4+2x23x37)． x2xy+y1=x2( )；67.[( )+6x7][4x2+( )( )]=x22x+1．68.(x+y+z)(x+yz)=[y( )][y+( )]．69.[( )9y+( )]+2y2+3y4=11y2( )+13．+,++++．72． (+xy2y3)(+)．73． {2a2b[3abc(4ab2a2b)]｝．74． (5a2b+3a2b2ab2)(2ab2+3a2b2+a2b)．75． (x22y2z2)(y2+3x2z2)+(5x2y2+2z2)．76． (3a6a4+2a54a31)(2a+a3a5a4)．77． (4a2bc)5a[8b2c(a+b)]．78． (2m3n)(3m2n)+(5n+m)．79． (3a24ab5b2)(2b25a2+2ab)(6ab)．80． xy(2xy3z)+(3xy4z)．81． (3x3+2x25x+1)(56xx2+x3)．83．3x(2x4y6x)+3(2z+2y)．84． (x2+4+3x4x3)(x2+2xx45)．85． 若A=5a22ab+3b2,B=2b2+3aba2,計算A+B．86． 已知A=3a25a12,B=2a2+3a4,求2(AB)．87．2m{3n+[4m(3mn)]｝．88．5m2n+(2m2n)+2mn2(+m2n)．89．4(xy+z)2(x+yz)3(xyz)．90．2(x22xy+y23)+(x2+y2)(x2+2xy+y2)．92．2(a2abb2)3(4a2b)+2(7a24ab+b2)．｛3x[4x2(3x2x)+(xx2)]｝．94：(7xy2z)｛[4x(xyz)3x+z]x｝．95：(+3a)+(5a)+(7a)+(31a)(+4a)(8a)．96：a3(a2a)+(a2a+1)(1a4+a3)．97．4x2(x3)3[x3(42x)+8]．98. (4y－3x)(3x+4y).99.(x+1)(x－1)－x2.100.(3y－1)(3y+1)－(2y+2)(2y－2).
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