6.4-2(x+1.2)=0.
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/23 21:09:52
6.4-2(x+1.2)=0.6.4-2(x+1.2)=0.6.4-2(x+1.2)=0.4.2(x+1.2)=0.4x+1.2=4.2*0.4x+1.2=10.5x=10.5-1.2x=9.3
6.4-2(x+1.2)=0.
6.4-2(x+1.2)=0.
6.4-2(x+1.2)=0.
4.2(x+1.2)=0.4 x+1.2 =4.2*0.4 x+1.2 =10.5 x = 10.5-1.2 x =9.3
6.4-2(x+1.2)=0.
已知1/√(x)+√(x)=√5,求√(x/x2+x+1)+√(x/x2-x+1)的值定义域 x>0,两边平方,x+2+1/x=5,x+1/x=3,x^2-3x+1=0,x^2+x+1-4x=0,x^2+x+1=4x,x^2-x+1-2x=0.x^2-x+1=2x,√[x/(x^2+x+1)]-√[x/(x^2-x+1)]=√[x/(4x)]-√[x/2x]=√(1/4)-√(1/2)
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
x^2=(0.4X)(0.
解方程(按顺序解答,3.8+X=12.8 6.4+X=15.6 X-4.8=4.8 1.5-X=0.84 2X+0.82=0.82 3+0.5=7 2X+0.4X=48(并检验)8x—x=14.735x+13x=9.65(x+3)=35x+3.7x+2=16.114x+3x—1.2x=15818—2.5x=13(并检验)1.5x—6=3(并检验)9.5x—5x=277x—0.6x=16
先化简,再求值(x²+x+1分之x²-4)÷(x³+x²+x分之x³-2x²)²乘以(x+2)³分之x,其中x²+2x-2=0.
已知实数x满足x²-3x+1=0.求(1)x+ 1/x (2)x²+ 1/x² (3)x-1/x已知实数x满足x²-3x+1=0.求(1)x+ 1/x (2)x²+ 1/x² (3)x-1/x
请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360
1.2x-x=0.
(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0 2(x-1=(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0 2(x-1=(x-1)(x-2) 2x²+3x-18=0 3x²+2x-5=0 x²-4x-7=0.解一元二
0.3+0.3x=0.39 x= 2x-1.5x=7.6x x= 0.36x÷0.3=1.2 x=6(x+1.2)=18.6 x= 7x+2x = 8.1 x= (x-5)÷3=1.7 x=5(x+1.1)=15.5 x= 9x+25=70 x= 7x-4x=2.1 x=
问题在补充栏因为(X+3)(X-2)=x平方+x-6,所以(x平方+x-6)/(x-2)=x+3当x=2时,多项式x平方+x-6为0.x平方+x-6能被x-2整除,这之间有什么关系?因为(X+3)(X-2)=x平方+x-6,所以(x平方+x-6)/(x-2)=x+3,这说
9^x+2(x-2)3^x+2x-5=0.
9^x+2(x-2)3^x+2x-5=0.
解关于x的分式方程:(7/x^2)+(1/x^2-x)=0.
1.5x+x=4.还有一个,(x+1.2x)×2=66
8x-5.5x=7.57.2x÷3.6=2 3x+6x-8x=0.7 12x-2x-5x=4.512x-x=0 5x+x=1.8 3.2x+1.8x=64.8x-0.8x=6 6.3-0.3x=9.6 8.6x-8.5x=0.720x-2x=36 9x+6x=4.5 18x-12x=5.42x-1.6x=3.6 18x+3x=7×6 1.2x-0.5x=0.71.3x+2.7x=1 4x-3.2x=6.4 0.8x+3.2x+3x=562.8x-2x=7.2
x+2/2x+2-x/2x=0.(x 2/2x 2)- (x/2x)=0.1