180(x-2)+360/x=1340
(x-2)*180/x*x=360咋解
X.(X十1)x(X十2)x(x十3) =360
6X-(360X-0.5X)=2×(360X-0.5X)
x*(x+1)*(x+2)*(x+3)=360 x=?计算过程以及结果
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
小数奥数网xx(x +1)x(x+ 2)x(x +3)=360怎样算?
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
x/x平方-x+2=2x/x+1
x+x÷3+2x-30=180
360/x-2=360/1.5x
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
180-x=2(90-x)+20