X^2+10x-1200=0
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X^2+10x-1200=0X^2+10x-1200=0X^2+10x-1200=0x2+10x-1200=0x2+10x=1200x2+10x+52=1225(x+5)2=根号1225x+5=±35
X^2+10x-1200=0
X^2+10x-1200=0
X^2+10x-1200=0
x2+10x-1200=0
x2+10x=1200
x2+10x+52=1225
(x+5)2=根号1225
x+5=±35
x1=30 x2=-40
X^2+10x-1200=0
x^2-10x-1200=0如何变为(x-40)(x-30)
4x²+5x=81 x(x+5)=0 (2x-x)(x-1)=0 x(x+5)=5x-10 (3x-2)(x+1)=x(2x-1)
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
1/x+1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+...1/(x+9)(x+10)=0
解方程:1/x+1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+……+1/(x+9)(x+10)=0
(2x-2)(x-1)=0 x(x-5)=5x-10
2的x次方+x=0求x2^x+x=10求x
计算x^2+6x+9/x^3-7x^2+10x>=0
(40-x)(20+2x)=1200 800+80X-20X-2x^2=1200 -2x^2+60X-400=0 x^2-30X+200=0 (X-10)(X-20)=0 X-10=0 X-20=0(X-10)(X-20)=0 40-x)(20+2x)=1200 800+80X-20X-2x^2=1200 -2x^2+60X-400=0 ^2-30X+200=0 (X-10)(X-20)=0
x*x+2x+x*x+10x+x*x+25+2x+x*x+1+1+16+x*x+4x*x+9-12x+16x*x+4-16x=30x*x-7x-15 求x,可以只要答案.如图,全是正方形,一个边长为1,一个边长为4,求总面积,你也可以用你的方法.上面那个方程是我列的.5x*X+7X-72=0
f(x)={x^2-2x,x>=0 x^2+2x,x
如果X*X--1=0,那么X*X*X+2*X*X+2008=几?
已知x*x+x-1=0 求x*x*x-2x+11=?
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
已知x*x+x-1=0求x*x*x-2x+2010的值
11x^2+10x-10=0X=?
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1