(10+X)(500-2X)=600
(10+X)(500-2X)=600
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8
(2x-2)(x-1)=0 x(x-5)=5x-10
(X-X*20%-18-(X-X*20%-18)*10%=X*1/2-3(过程)
2x(56-X)-10=30+X
f(x)=x²+3x|x-2|
计算:1/(x^2-7x+10)+1/(x^2-x-2)+1/(x^2+5x+4)+1/(x^2+11x+28)=( )
(1)当x=2时,求代数式2x²(x²-x+1)-x(2x³-10x²+2x)的
(x+1分之x+6)-(x^+3x+2分之3x^+10x+4)+(x+2分之2x+1)=0,解这个方程
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
f(x)=-x^2+2x(x>0) 0(x=0) x^2-2x(x