若x^3+x^2+x+1=0,则y=x^97+x^98+.+x^103

若2x-3y+4=0则x（x*x-1)+x(5-x*x)-6y+7 若y=x(x-1)(x-2)(x-3),则y′（0）= 若x+y=1,x不等于0则x+(2xy+y^2)/x/(x+y)/x= 若x^3+x^2+x+1=0,则y=x^97+x^98+.+x^103 若2x=3y,则(x*x+y*y)/x*x=? 若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值 若x,y满足|2x-y-3|+|3x+2y+1|=0,则x= y= 若x,y满足|x-y+1|+(x+y+3)^2=0则x^2-y^2= 若3x-5y=0,则x+y/x=（）,x-y/y=（）,2x-3y/2x+3y=( ) 若x+y=4,则多项式1/2(x+y)+4(x-y)-3（x-y）-3/2(x+y)-x+y值是（） 若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于 若(5x+y)(7x+10y)=1/2,则x/y=______;若x+1/x=3,则x^2+1/x^2 函数,y=3x/(x^2+x+1) ,x 函数y=3x/(x^2+x+1) （x 若x-y不等于0,2x-3y=0,则分式(10x-11y)/(x-y)的值是（）?(10x-11y)/(x-y) =[(8x-8y)+(2x-3y)]/(x-y) =8为什么8X-8Y=8？(10x-11y)/(x-y)=[(8x-8y)+(2x-3y)]/(x-y)=8+(2x-3y)]/(x-y)=8+0=8 若2x^2-3x+1+y=0,则x+y的最大值 已知x属于R,y>0,集合A={x|x*x+x+1,-x,-x-1},集合B={-y,-y/2,y+1}若A=B,则x*x+y*y的值为 已知实数x满足x+1/x=3,求x-1/x的值 如果x平方+y平方-4x-2y+5=0,则（根号x）+y/（根号x）-y=若（根号）x立方+2x平方=-x（根号）x+2,则x的取值范围是