1)x^5+x^3-x^2-12)mn-m-n+1请问这两个要怎么分解呢?写清楚点哦...
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1)x^5+x^3-x^2-12)mn-m-n+1请问这两个要怎么分解呢?写清楚点哦...
计算:2/4-x+12/x^2-16+2/x+4通分:(1)-7/24x^2y^5 ,5/18x^3y^4(2)n/m^2-3mn ,m/3n^2-mn(3)3/x^2+x ,2x/x^2-1 ,5/x^2-x计算:(1)z/3x^2y - y/2x^2z + x/6y^2z^2(2)18/m^2-9 + 3/3-m(3)1/x+1 - x+3/x^2-1 除以x^2-9/x^2-2x+1(4)(x+3/x-3 + 9/x^2-6x+9)* x-3/x
(1).x^2-xy+x (2).m^2n-mn^2+mn (3).9x^3y^3-21x^3y^2+12x^2y^2 (4).x^2(x-y)+y^2(x-y)多项式因式分解
(8x+4x+1)(-8x^2+4x-1)因式分解6M-12MN-3MN^22AX^2-12AXY+18AY^2
1. -(mn-1)+(m-n)=-mn+1+m+n2. x-(5x-3y)+(2x--y)=-2x+2y计算结果对吗
合并下列同类项 (1)3x-x-1.5x(2)7m的平方n-3mn的平方+5m的平方n+2mn的平方
因式分解下列各式1.3x²-5x+22.x³-2x²-3x3.x²-6x-164.m²+4mn-12n²
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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
m/(x+2)+n/x-3=3x+1/(x+2)(x-3) 则1/mn的值为?
1-m^2+10mn-25n^2 x^3+3x^2-4x-12 x^2+2x-6y-9y^2因式分解
若(3x+1)(-2x+5)=-6x²+mn+n,则m的值为()
去括号练习题化简:-(x-6y)-(-7+3y)3(2a^2-b^2)-2(3b^2-2a^2)(m^2-2mn+n^2)-(m^2+2mn+n^2)-1/2(x+y)-1/4(x-y)-3/4(x^2-x)+2(x^2-x)还有化简求值,2(x-3x^2+1)-3(2x^2-x-2)其中x=2
几道因式分解(2x^2+1)^2+2(2x^2+1)+12ab-b^2-a^2+abm-m^3-mn^2+2m^2n(a^2+b)^2-4a^2b^2(x^2-3)^2+(x^2-3)-22x^2+x+13x^2+5x+23x^2+x-22x^2+13x+1512x^2-25x+123x^2+x-10
选择题.谢谢,三克油.(1)下列各式中去括号正确的是( ).A.x²-(2x-y+2)=x²-2x-y+2B.-(mn-1)+(m-n)=-mn-1+m-nC.ab-(-ab+3)=-3 D.x-(5x-3y)+(2x-y)=-2x+2y(2)
合并同类项3x平方-2x+1-x平方+5x-6 3x平方-1-2x-5+3x-x平方 x三次方-2合并同类项3x平方-2x+1-x平方+5x-63x平方-1-2x-5+3x-x平方x三次方-2x平方-x三次方+5x平方+44a平方-3b平方-2ab-4b平方+2ba0.3m平方n-五分之一mn
(3x+9)(6x+8) (3x+7y)(3x-7y) (1/3a^2b^2)(-15a^2b^2) (3mn+1)(3mn-1)-8m^2n^2 (x+2)^2-(x+1)(x-1)(x+y+z)(x+y-z)(1)(3x+9)(6x+8) (2)(3x+7y)(3x-7y) (3) (1/3a^2b^2)(-15a^2b^2) (4)(3mn+1)(3mn-1)-8m^2n^2 (5) (x+2)^2-(x+1)(x-1) (6)(x+y+z)(x+y-z) 上面
x(2x-1)=-3x(x+1)+5x²+3