1.(2x+3)(3x-1) 2.(2a平方+a)(-3a-1)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/22 13:13:29
1.(2x+3)(3x-1)2.(2a平方+a)(-3a-1)1.(2x+3)(3x-1)2.(2a平方+a)(-3a-1)1.(2x+3)(3x-1)2.(2a平方+a)(-3a-1)原式=6x&#

1.(2x+3)(3x-1) 2.(2a平方+a)(-3a-1)
1.(2x+3)(3x-1) 2.(2a平方+a)(-3a-1)

1.(2x+3)(3x-1) 2.(2a平方+a)(-3a-1)
原式=6x²-2x+9x-3=6x²+7x-3
原式=-6a²-2a-3a²-a=3a²-3a

a+x/x+1 ,x/x^2-2x-3 ,a/x^2+4x+3 因式分解1.(x-1)(x^2-2x)+(x-1) 2.x^3-9x 3.(a^2+1)^2-4a(a^2+1)+4a^2 1.x²+3x/x²+2x -x²-4/x²+4x+4 2.a²/a+b-a+b 3.(1-1/a-2)÷3-a/2a-44.(x-1/y)÷(y-1/x) 5.3-x/x-4+1/4-x=1 6.x-2/x+2-1=3/x²-4 7.5/x-1=1/x+38.x+1/x-2+x+2/x-1=2 1.计算(a^2+a+1)(a^2-a+1) 2.计算(x-y)(x+y)+(3x-2y)(2x+y)-x(6x-y) 1.已知x+1/x=4求x^3+x^-3的值 2.已知a^(2x)=根号2 -1,求[(a^3x)-(a^-3x)]/(a^x-a^-x)的值 1.1/x-1/x-1(x^2-1/x-x+1)2.((x+2/x^2-2x-(x-1/x^2-4x+4)除以4-x/x3.(x/y-y/x)除以(x/y+y/x-2)除以(1+y/x)先化简,后求值:1.(1/x-1+1)除以x/x^-1,其中x=22.a-3/2a-4除以(5/a-2-a-2)其中a=3 1.当x____时,1/x+1有意义 化简:1.(3x/(x+2)-x/x-2)+2x/x²-4 2.(a/b-b/a)÷a+b/a3.(x-1/(x+1)+2x/x²-1)÷1/x²-14.(2x-3/(x)-1)÷x²-9/x 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, 1.x(2x+1)(1-2x)-4x(x-1)(1-x)2.(x-1)(x^2+x+1)3.(2x+y)(2x-y)-(2x-y)^24.4x^2(x-y)+(y-x)5.a^2×(-2a^2)^2÷a^3-2a^3这个^是次方的意思 分式计算及解方程1.[(3x)/(x-2)-x/(x+2)]÷x/(x²-4)2.(3-x)/(x-4)+1/(4-x)=13.2a/(a²-4)+1/(2-a)4.1/(x-3)-(x+3)/(x²-1)·(x²-2x+1)/(x²-9)5.2x/(x+1)+1/x=26.x/(2-x)-3/(x-2)=4 指数化简请帮忙1.X^6a+x^2---------- X^2a2.X^(3a+2)----------- X^(2a-1) 1.x^4+3x²y²+4y^4 2.x^4+4 3.x²-2x-a²+2a 4.(x+y)²-4x-4y+41.x^4+3x²y²+4y^4 2.x^4+4 3.x²-2x-a²+2a 4.(x+y)²-4x-4y+4 5.x(x-2)-a(a-2) 6.(x+y)²-4(x+y-1) x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1) 1.(-2/3x-3/2y)² 2.x²-(x+2)(x-2)-(x+x/1)² 3.[(x+y)²-(x-y)²]/(2xy)4.3x-12x³ 5.-2a³+12a²-18a 6.9a²(x-y)+4b²(y-x) 7.(x+y)²+2(x+y)+1 计算:1/(a-x)-1/(a+x)-2x/(a^2+x^2)-4x^3/(a^4+x^4) *-----------------------------------------------*| 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 || x^2-x/x+1÷x/x+1 ;x^2+6x+9/x^2-9÷x+2/x-3;2/a÷4/a 1.(3x²+10x²+13x-27)/(x²+2x-3)2.(2x²+x³-2)/(x²-1)3.已知A=(3x)²-21x³-2x²+11x-2 B=3x³-5x²-4x+1求a²/b²