x(x-10)=600
x(x-10)=600
x=-20,x=30
(x-5)[400-40(x-10)]-600=1560
(X-5)[400-40X+400]-600=1560,
(X-5)(20-X)-15=39,
X^2-25X+154=0,
(X-11)(X-14)=0,
X1=11,X2=14,
X×X-(X-10)(X-10)=30×30
50
X-10=[2(X-10)-9]×5
x-10=[2(x-10)-9]*5
x-10=(2x-29)*5
x-10=10x-145
9x=135
x=15
x-10={(x-10)×2-9}×5
X-10={2X-29}×5,
X-10=10X-145,
9X=135,
X=15。
X×X-(X-10)(X-10)=30×30解答过程
X×X-X×X+20X-100=900
20X=1000
X=50
(x-5)[400-40(x-10)]-600=1560解答过程
(x-5)[400-40(x-10)]-600=1560
(x-5)×(400-40x+400)=1560+600
(x-5)(800-40x)=2160
40(x-5)(20-x)=2160
(x-5)(20-x)=54
20x-x²-100+5x=54
x²-25x+154=0
(x-11)(x-14)=0
x1=11或x2=14.
方程40x+(x-10)-58=10x+(x-10)怎么解?
40x+(x-10)-58=10x+(x-10)
40x+x-10-58=10x+x-10
40x+x-10x-x=58+10-10
30x=58
x=58/30
x=29/15
x[(x-10) 10]-x(x-10)=0.02如何解方程
x[(x-10) +10]-x(x-10)=0.02
x^2-x^2+10x=0.02
x=0.02/10
=0.002
得到的结果为0.002
5【2(X-10)-9】=X-10怎么解
5【2X-20-9】=x-10
5[2x-29]=x-10
10x-145=x-10
9x=135
x=15