9-2(x+3)=x-(3+6x) 9x-3(x-2)=6x+2 求过程加答案💗
解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
1x()+2x()+3x()+4x()+5x()+6x()+7x()+8x()加9x()+10x()=1980
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
5x-3(2x+1)=6x-4(5-3x)求x
1、x*(x+3)*(x+6)*(x+9)=68040 2、x*(x+1)*(x+2)*(x+3)*(x+4)=5544
6^x+4^x=9^x 求(2/3)^x
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少
6x-2x=0.72 5x+3x=3.2×2(过程仔细)
lim(x趋于∞)[(x+1)/(x+2)]^3x=( )求计算过程