计算:(x+1)x=7 (x-1)(x+2)=30 (3-x)(3-x)+x=9
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/04/20 18:52:37
计算:(x+1)x=7 (x-1)(x+2)=30 (3-x)(3-x)+x=9
X^2+X-7=0 X1=根29 -1 X2= - 1- 根29
X^2+X-2=0 X1=-2 X2=1
9-6X+X^2+X=9 X^2-5X=0 X(X-5)=0 X1=0 X2=5
X^2+X-2=0 X1=-2 X2=1
9-6X+X^2+X=9 X^2-5X=0 X(X-5)=0 X1=0 X2=5
计算:(x+1)x=7 (x-1)(x+2)=30 (3-x)(3-x)+x=9
如果3x*x-x=1那么9x*x*x*x+12x*x*x-3x*x-7x+2001等于多少
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
x+2/x+3-x+1/x+2=x+8/x+9-x+7/x+8
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
计算:(1/X^2+3X+2)+(1/X^2+5X+6)+(1/X^2+7X+12)=(1/X^2+9X+20)
已知x=根号2-1,计算x^10+2x^9-2x^8-2x^7+x^6+3x^2+5x+1的值
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
a*b=2×a+b 计算x*2x*3x*4x*5x*6x*7x*8x*9x=3039 x=