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计算题:(1-a2)(1-b2)-(a2-1)2(b2-1)2

初一一元一次不等式、因式分解、一元一次、二元一次方程、化简求值计算题

x-5≤15 x≤20 x^+2xy+y^ x-6≤15 x≤21 x^+4xy+2y^ x-7≤15 x≤22 x^-y^ x-5≤15+9 x≤29 3 x^+6xy+3y^ x-5≤15-x x≤10 2x^+4xy+y^ x-6≤15-2x x≤7 x^-2xy+y^ x-5=15 x+y=5 x-y=6 x-6=15 x+y=5 x-2y=6 x-7=15 x+5y=15 x-y=26 x-5=15+9 3x+2y= 5 x-y=6 x-5=15-x x+4y=5 x-y=6 x-6=15-2x x+y=5 2x-3y=6

1-a2-b2-a2b2如何因式分解

=1-a2-b2(1-a2) =(1-a2)(1-b2) =(1-a)(1+a)(1-b)(1+b)

急求因式分解题(1-a2)(1-b2)-4ab

=1-a^2-b^2+a^2b^2-4ab =(a^2b^2-2ab+1) - (a^2+b^2+4ab) =(ab-1)^2-(a+b)^2 =(ab-1+a+b)(ab-1-a-b)

请帮忙出100道简单的初二因式分解题 (象x y类型) 急用!!!!!!!!1

http://wyzx.zjhyedu.cn/xkjd/sx/UploadFiles_4228/200804/20080407180802488.doc http://www.yh363.com/shitixitong/shuxue-2/8-2-017.doc 1- 14 x2 4x –2 x2 – 2 ( x- y )3 –(y- x) x2 –y2 – x + y x2 –y2 -1 ( x + y) (x – y ) x2 + 1 x2 -2-( x -1x )2 a3-a2-2a 4m2-9n2-4m+1 3a2+bc-3ac-ab 9-x2+2xy-y2 2x2-3x-1 -2x2+

150道八年级上册数学计算题!有答案,有过程!

1.-a2+b2=(b+a)(e799bee5baa6e79fa5e98193e78988e69d8331333332396139b-a) 2.(x-1)2-2(x-1)+1 解:原式=(x-1-1)2 =(x-2)2. 3.8x2-10x+2 解:原式=2(4x2-5x+1) =2(4x-1)(x-1) =(4x-1)(2x-2) 4.2a2-4a 解:原式=2a(a-2) 5.4x2-4x+1=(2x-1)2 6.a4b-6a3b+9a2b 解:原式=a2b(a2-6a+9) =a2b(a-3)2 7.x(x-y)-y(x-y)=(x-y)2 8.x2y-4y 解:原式=y(x2-4) =
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