1、中考计算题精选因式分解强烈推荐 194ab4a9x312x24x48x2162550(xy)25(xy)29x28x38x22x(2a3b)2(3a2b)212a224a12化简并求值:3(mn)2(mn)(m2n),其中m2,n3化简:(x2)(x2)2(x21)分解因式:9x336x=ab8a9x312x24x12x242530(xy)9(xy)2916x28x316x28x(a3b)2(3a2b)212a224a12化简并求值:2(mn)2(mn)(mn),其中m1,n3化简:(x1)(x1)2(x24)分解因式:16x325x=a3b2ax32x2xx2114(xy)4(xy)2916
2、x28x316x28x(2a4b)2(4a2b)212a224a12化简并求值:2(mn)2(3mn)(m2n),其中m1,n2化简:(x3)(x3)2(x21)分解因式:25x3x=ab8ax38x216x25x225110(xy)25(xy)249x212x324x212x(2a4b)2(3ab)28a216a8化简并求值:3(mn)2(3mn)(mn),其中m1,n2化简:(x2)(x2)3(x21)分解因式:25x336x=a2b4a16x316x24x32x2161624(xy)9(xy)244x212x324x212x(a4b)2(3ab)28a216a8化简并求值:(mn)2(3
3、mn)(m3n),其中m3,n1化简:(x4)(x4)2(x24)分解因式:16x325x=a2b2a9x330x225x48x216918(xy)9(xy)2169x23x312x212x(a4b)2(4a2b)22a24a2化简并求值:2(mn)2(2mn)(m3n),其中m1,n3化简:(x4)(x4)2(x21)分解因式:16x34x=aba16x316x24x48x216930(xy)25(xy)249x23x312x212x(2a4b)2(4ab)212a224a12化简并求值:(mn)2(2mn)(mn),其中m3,n3化简:(x3)(x3)2(x21)分解因式:25x3x=a2
4、b4a4x316x216x27x291640(xy)25(xy)244x28x38x22x(2a4b)2(3ab)22a28a8化简并求值:3(mn)2(mn)(mn),其中m3,n3化简:(x2)(x2)3(x21)分解因式:25x3x=a2b3ax36x29x8x242540(xy)16(xy)249x212x312x23x(a4b)2(3ab)22a24a2化简并求值:2(mn)2(2mn)(m3n),其中m3,n2化简:(x1)(x1)3(x24)分解因式:x316x=ab6a4x34x2x12x24416(xy)16(xy)299x28x316x28x(2a3b)2(4a2b)212a224a12化简并求值:4(mn)2(mn)(m2n),其中m1,n2化简:(x1)(x1)3(x21)分解因式:9x34x=a2b8a16x340x225x4x2444(xy)(xy)29x23x36x23x(2a3b)2(4ab)212a212a3化简并求值:3(mn)2(2mn)(mn),其中m1,n2化简:(x3)(x3)2(x21)分解因式:4x39x=a3b2a4x34x2x50x225918(xy)9(xy)294x2