5x+4=-1 3x+2=2x-4 4x+6=5X-7 6X+8=4X-2 X-5=7X+4 /2X-3/=7
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5x+4=-13x+2=2x-44x+6=5X-76X+8=4X-2X-5=7X+4/2X-3/=75x+4=-13x+2=2x-44x+6=5X-76X+8=4X-2X-5=7X+4/2X-3/=7
5x+4=-1 3x+2=2x-4 4x+6=5X-7 6X+8=4X-2 X-5=7X+4 /2X-3/=7
5x+4=-1 3x+2=2x-4 4x+6=5X-7 6X+8=4X-2 X-5=7X+4 /2X-3/=7
5x+4=-1 3x+2=2x-4 4x+6=5X-7 6X+8=4X-2 X-5=7X+4 /2X-3/=7
1.5x+4=-1==>5X=-5==>X=-1
2.3x+2=2x-4==>X=-4-2=-6
3.4x+6=5X-7==>X=6-(-7)=13
4.6X+8=4X-2 ==>2X=-2-8==>X=-5
5.X-5=7X+4==>6X=-5-4==>X=-3/2
6./2X-3/=7==>2X-3=7或2X-3=-7,即X=5或者X=-2
x=-1
x=-6
x=13
x=-5
x=-3/2
x=-2或x=5
x=-1
x=-6
x=13
x=-5
x=-3/2
x=-2或x=5
-1
-6
13
-5
-3/2
-2或5
化工iul
*-----------------------------------------------*| 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-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4
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x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8 好多年没有用过过数学公式了 想不起来怎么算了 想知道 X值是多少
如果1+x+x^2+x^3=0,求x+x^2+X^3+x^4+x^5+x^6+x^7+x^8的值,
已知x=2π+1求 |x-1|+|x-2|+|x-3|+|x-4|+|x-5|+|x-6|+|x-7|+|x-8|+|x-9|+|x-10|
已知x=2π+1.求(X-1)+(X-2)+(X-3)+(X-4)+(X-5)+(X-6)+(X-7)+(X-8)+(X-9)+(X-10)
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(x+2)/(x+1)-(x+3)/(x+2)=(x+4)/(x+3)-(x+5)/(x+4)
x-1/x-2-x-3/x-4=x-2/x-3-x-4/x-5怎么做?
(x-3)/(x-2)-(x-2)/(x-1)=(x-5)/(x-4)-(x-4)/(x-3) 帮个忙呗~~~
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(x+1)(x+2)(x+3)(x+4)-(x^2+5x+3)(x^2+5x+7)=?
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3