若x^2+2x-3=0,则3x^2+6x-1RT
来源:学生作业帮助网 编辑:六六作业网 时间:2025/01/11 17:41:02
若x^2+2x-3=0,则3x^2+6x-1RT若x^2+2x-3=0,则3x^2+6x-1RT若x^2+2x-3=0,则3x^2+6x-1RT3x^2+6x-1=3x^2+6x+9-9-1=(3x^
若x^2+2x-3=0,则3x^2+6x-1RT
若x^2+2x-3=0,则3x^2+6x-1
RT
若x^2+2x-3=0,则3x^2+6x-1RT
3x^2+6x-1 =3x^2+6x+9-9-1=(3x^2+6x+9)-9-1 =3(x^2+2x-3)-10=-10
-10 6
若2x-3y+4=0则x(x*x-1)+x(5-x*x)-6y+7
*-----------------------------------------------*| 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(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
若x^3+x^2+x+1=0,则x^-27+x^-26+x^-25+……+x^-1+1+x+……+x^26+x^27
一个“整式的乘法”的问题请先阅读下列解题过程,再仿做下面的问题.已知X*X + X - 1=0,求X*X*X + 2*X*X + 3的值.解X*X*X + 2X*X +3=X*X*X +X*X -X +X*X +X +3=X{X*X +X -1} +X*X +X -1 +4=0+0+4=4+ x + X*X + X*X*X=0.+ X*X + X*X*X
若x=300,则x/x-3-(x+6)/x^2-3x+1/x的值为?
(x+2)(x-3)(x-6)(x-1)=0
3X*X-2X+6=8,X=?3X*X-2X+6=8,X=?则代数式1.5X*X-X+1=?
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^+x^6+x^7+x^8的值
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,
1/(x*x-2x-3)+2/(x*-x-6)+3/(x*x+3x+2)=0
已知X^2-X-1=0,则-X^3+2X+2006X^*X为什么=X^2+X
5(x的2次方+X-3)-4x(6+x)+x(-x+4)=0
若|x^-x-2|+|2x^-3x-2|=0,则x等于?
若x+x-6/x-3x+2的值为0则x值为
若x平方+x-1=0,则2x立方-3x平方-x=?