50%x-200=2000
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50X=200+X*X
50%x-200=2000
x+ x+(x*50%)=1.5X?
x/40+x/50=1+1/200*x
50x+200(22-x)=1400
x+50=80%x+200
x^2-50x+200=0
200x+50(22-x )=1400
即:x²-200x+7500=0 (x-150)(x-50)=0.怎么求.
若1+x+x*x+x*x*x=0,求x+x*x+x*x*x+.+x(2000次幂)
5*(x-2)=4*(x+3) 2x+(50-x)*4=140 3x-(8-x)=20*4 200x=(x-0.5)*240 12x+34=14*(x-4)
解方程:8(X-2)=2(X+7) 200X+50X(22-X)=1400
(60-X)(80-X)=(50-X)2-200吗那你认为(60-x)(80-x)=?
x+3x+x-2+x+x+50%x=188 求x
(X+X-200)/(X-200)=5
(100-2x)(50-2x)=3600 5000-200x-100x+4x(2)=3600 4x(2)-300x+1400=0(100-2x)(50-2x)=36005000-200x-100x+4x^2=36004x^2-300x+1400=0为什么不是5000-3600=200x+100x+4x^2=300x+100x+4x^2-1400=0
已知3x*x-x=1,求6x*x*x+7x*x-5x+2000
260x=200X(x+6)