化简:1..8x-(-3x-5) 2..(3x-1)-(2-5x) 3..-(5a+b)-7(a-3b) 4..(-4y+3)-3(-5y-2) 5..-1/2(x+y)-1/4(x-y) 6..-2(2a平方+9b)-3(-5平方-4b)

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化简:1..8x-(-3x-5)2..(3x-1)-(2-5x)3..-(5a+b)-7(a-3b)4..(-4y+3)-3(-5y-2)5..-1/2(x+y)-1/4(x-y)6..-2(2a平方

化简:1..8x-(-3x-5) 2..(3x-1)-(2-5x) 3..-(5a+b)-7(a-3b) 4..(-4y+3)-3(-5y-2) 5..-1/2(x+y)-1/4(x-y) 6..-2(2a平方+9b)-3(-5平方-4b)
化简:1..8x-(-3x-5) 2..(3x-1)-(2-5x) 3..-(5a+b)-7(a-3b) 4..(-4y+3)-3(-5y-2) 5..-1/2(x+y)-1/4(x-y) 6..-2(2a平方+9b)-3(-5平方-4b)

化简:1..8x-(-3x-5) 2..(3x-1)-(2-5x) 3..-(5a+b)-7(a-3b) 4..(-4y+3)-3(-5y-2) 5..-1/2(x+y)-1/4(x-y) 6..-2(2a平方+9b)-3(-5平方-4b)
1.11X+5 2.8X-3 3.-12a+20b 4.11y+9 5.-3/4X-1/4y 6.11a平方-6b

1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/(x^2-5x+6)+(x^2-3x+8)/(x^2-4x+3)2.{(x^2)/(x-y)}*{y/(x+y)}-{(x^4y)/(x^4-y^4)}÷{(x^2/x^2+y^2)^2} 解下列方程1.(x-7)(x+9)+2x(x-5)=(3x-4)(x-1) 2.(x-3)(x+3)-(3x+1)²=8x(5-x)解下列方程1.(x-7)(x+9)+2x(x-5)=(3x-4)(x-1) 2.(x-3)(x+3)-(3x+1)²=8x(5-x) 1.x²-2x-3 2.x²-5x-6 3.x²-9x-10 4.x²-9x-10 5.x²-2x-8 6.x²+2x-8 7.x²-x-12 8.x²+x-12 9.x²+6x-16 10.x²-14x-32 11.x²+7x-18 1.(1/X-1 )-2=X^-3X/X^-12.(X/X+1)^+5(X/X+1)+6=03.(8(X^+2X)/X^-1)+ 3(X^-1)/X^+2x 帮帮忙做下了: 1.化简(x+y)×x^2/(x^2-y^2)+1/(x-y)-(2x^2y-2xy^2)/(x^2-2xy+y^2)2.(x^2-9)/(x^2+5x+6)-(x^2-x-2)/(x^2-2x)+(x^2+2x+4)(x^3-8) *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || 解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1 8x-[-3x-(2x-7x-5)+3]+4x化简 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x 求余数1.(x平方-2x+3)除以(2x+3)2.(x五次方-1)除以(x-2)3.21x五次+33x四次-70x三次+21x平方+x-1)除以x分解因式2x三次+5x平方2x-94x三次-15x平方+8x+3x四次-5x三次+20x-16x四次-2x平方+3x-2x五次-10x平方+15x-6若有若( 1.已知:x+y=0.2,x+3y=1,求3x^2+12xy+12y^2的值.2.化简:(1) (x^2-6x+9)/(x^2-4)(2) (x^2-4x)/(x^2-8x+16)3.解方程:(1) 1/(x-4)=4/(x^2-16)(2) 3/(x-1)-(x+2)/[x(x-1)]=0(3) (2-x)/(x-3)+1/(3-x)=1如果过程写得好, 分到底)1.a^2+8ab+7b^2+a+b 2.(x^2+2x)-7(x^2+2x)-8 3.x^2+xy-by^2+x+13y-6 4.(x+3)(x-5)(x+6)(x-10)-20x^2 5.x^3-2x^2(y-2)+x(y-2)^2 八年级上册数学题(人教版)(配套)给分!急!1.(4a^2-3)(4a^2+8)2.(3x+1)(x+1)-(2x-1)(x-1)-3x(x-2)-2x(-3x)3.(x-1)(x+2)+(2x-1)(x+5)-(2x-5)(x+5)4.解方程:4(x-2)(x+5)=(2x-3)(2x+11)+11第一个是:(4a²-3)(4a²+8) 已知x=2π+1.求(X-1)+(X-2)+(X-3)+(X-4)+(X-5)+(X-6)+(X-7)+(X-8)+(X-9)+(X-10) 1.x+9/x+8- x+10/x+9=x+6/x+5- x+7/x+6;2.x³+2/x²-x+1+ x³-9/x²+2x+4=2x-1;3.x-a-b/c+ x-b-c/a+ x-c-a/b=3.(空开的指另一个分式)第二题不用了。 化简(1+x)(x+x分之x-1减x的三次方-x分之1-x)1.化简.a-b分之b+a+b 2.化简.x-2x+1除以x+x分之x-1 3.当x=负的三分之一时,则(x-1分之3x-x+1分之x)除以x-x分之x的值.4.先将式子(1+x)除以x分之x-1,化简, 化简(x+2)(x的平方-6x-9)-(x-5)(x-3)x 几道初中数学题..要有过程 注:x^2 表示x的2次方1.化简:(9x^2+3x)/(x^2+6x+9) * (x^3+27)/(x^2-3x) ÷ (x^2-3x+9)/(x^2-9)2.化简x - x÷{(x^2-y^2)/(x^3+y^3) * [(x-(x^2+y^2)/y ) ÷ (1/x - 1/y)3.化简分式: (x^3 + 5x^2 + 3x - 9)/(x^3