(x的2方+1)(x+1)(x-1)=要过程(2a+1/2)(2a-1/2)(4a的2方+1/4)=(x+3)(x-3)-2(2-x)(2+x)=(2x+3y)(3x-2y)-(x-2y)(x+2y)=(a的2方-4)(a的2方-5)+(3a+5)(3a-5)=[(2a-1)(2a+1)+(a+2)(a-2)-4a的2方](a的2方+5)=
来源:学生作业学帮网 编辑:学帮网 时间:2024/05/16 11:57:04
(x的2方+1)(x+1)(x-1)=要过程
(2a+1/2)(2a-1/2)(4a的2方+1/4)=
(x+3)(x-3)-2(2-x)(2+x)=
(2x+3y)(3x-2y)-(x-2y)(x+2y)=
(a的2方-4)(a的2方-5)+(3a+5)(3a-5)=
[(2a-1)(2a+1)+(a+2)(a-2)-4a的2方](a的2方+5)=
(x^2+1)(x+1)(x-1)
=(x^2+1)(x^2-1)
=x^4-1
(2a+1/2)(2a-1/2)(4a^2+1/4)
=(4a^2-1/4)(4a^2+1/4)
=16a^4-1/16
(x+3)(x-3)-2(2-x)(2+x)
=x^2-9-2(4-x^2)
=x^2-9-8+2x^2
=3x^2-17
(2x+3y)(3x-2y)-(x-2y)(x+2y)
=6x^2+5xy-6y^2-x^2+4y^2
=5x^2+5xy-2y^2
(a^2-4)(a^2-5)+(3a+5)(3a-5)
=a^4-9a^2+20+9a^2-25
=a^4-5
[(2a-1)(2a+1)+(a+2)(a-2)-4a^2](a^2+5)
=(4a^2-1+a^2-4-4a^2)(a^2+5)
=(a^2-5)(a^2+5)
=a^4-25
1-(2/x)-(1/x方)=2x+x方 的解是多少。
已知实数x y满足(x方-y方)(x方-y方-1)=2,求x方+y方的值.
x的方+2x+1=
已知x+y=1,求(x方-y方)的平方-2(x方+y方)
1.(x方-x-6分之x+2)+(x立方-3x分之2x)-(x方-6x+9分之x+1)2【x方-(y-z)方分之x方-y方】除以【(x-y)方-z方分之(x+y)方】乘以(x方-xy分之x方+xy-xz)3.当k为何值时,关于x的方程(x-1分之6)=(x-1
先化简再求值,(x方-2x+1分之x方-1)+(x-2分之x方-2x)/x其中4x方=1
8/(x方+x)+2/(x方-x)=4/(x方-1)
求3x方-2{x-5[x-3(x-2x方)-3(x方-2x)]-(x-1)}的值,其中x=2
已知x方-3x+1=0,求√x方+x方分之一+2的值.是根号里 x方+x方分之一+2
若x+1/x=3,则x方+1/x方=?x方就是x的方.
已知x3方+x-3方=2,求x+x-1方的值
已知x方-4x+4+|y+x|=0,求2x+x方/x方y-x方÷x方+4x+4/y方-2y+1×(X+2)的值
(x方-2x+1/x方-1)+(x-1/x方+x)-x 这是化简题?
2(6X方+X)方-11(6X方+X)+5X四次方-10X方+9X三次方-7X方+12X(X+Y)方+2(X+Y)-15A四次方-21A方-100(X方+X)方-14(X方+X)+24X方(X-1)-Y方(X-1)
求y=2x方-x-1/ (x方+x+1)的值域
因式分解 (x方-2x)的平方+2x方-4x+1
若x方+x=1,则x的3次方+2x方+2003
二次根式的加减已知x=1/√2+1,求x方-2x+1/1-x【】-√x方-2x+1/x方-x