shuihuijiezhedaofangcheng 1/3x乘以0.5+1/4(88-x)乘以0.7=15谢谢
shuihuijiezhedaofangcheng 1/3x乘以0.5+1/4(88-x)乘以0.7=15谢谢
(1+40%)乘以X乘以80%—X=15
方程:15乘以(3x-8)-4乘以(2x+3)=6乘以(4x-4)-4怎么解
1乘以2分之x+2乘以3分之x+.+2012乘以2013分之x=2012
2乘以x的平方加上3乘以x加上1与4乘以x的平方减去4乘以x减去3的公因式是什么
=3乘以2乘以1,=4乘以3乘以2乘以1,=5乘以4乘以3乘以2乘以1,那么100!除以99!
化简1:括号3x三次方-2乘以括号X+4减括号x平方-3乘以括号3X-:2:9乘以括号x+2乘以括号x-2减括号3X-2
已知x=8+4乘以根号3,求根号x-根号(x-1)的值
4分之1乘以X乘以5分之3等于30分之17
F(x)=(x-1)乘以(x-2)的平方乘以(x-3)的三次方乘以(x-4)的四次方.求F(1)的导数?
(1200乘以3分之1)乘以(x减百分之25x)减99x等于0.1
2乘以[1减1/3乘以(x减3分之1加x)]=3乘以[x/6减1/2乘以(2x减3分之10减7x)]