[(x+2)(x-2)]²
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
X-2-(x²/ x+2)
300字读后感 2篇 俄把格式说一下吧:《xxxx》(写题目)主要内容:x x x x x x x x x x x x
1.(x²-x+2)(-x-2-x²)
计算 x(x+3)-(x-1)(x-2)
(x-1)^3(x+1)(x-2)/(x+4)
f(x)=x²+3x|x-2|
(x+1)(x+2)(x+3)(x+4)+1
化简{x²-2x分之x+2-x²-4x+4x分之x-1}除以X分之(x-1)(X-4)乘以(2-x)
f(x)=-x^2+2x(x>0) 0(x=0) x^2-2x(x
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1