(1/6)×(2X-3)²=36 (5X-2)²=-125 怎么算?
(-x+2x²+5)+(4x²-3-6x)怎么算?
(2x+1)²-(x+3)(3-x)=6x怎么简便算?
解方程①(x+3/x-1)²-5(x+3/x-1)+6=0 ②x²-2/x+3-6x+18/x
2/x+3x=2/x-7和x²-4x=x(x-1)-3是不是一元一次方程?怎么判断?
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
x²+2x-6/x²+2x=1怎么算
(x+5)²-(x-2)(x-3) =x²+10x+25-(x²-5x+6) *5x怎么来
3x/x²-1+x²-1/2x=5/2 怎么解
(2x²-3x)²-5(2x²-3x)-6=0 3x/(x²-1)+x²
(x+4)(3x+6)=2x+4 (3x- 1)²+4x²=0 x²+5=2根号6x-1
(x+4)²-18=3x(x+2)怎么算
已知x²+3x-1=0 求(x-3)÷(3x²-6x)÷(x+2-[5÷(x-2)])的值