4x方-20x
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4x方-20x
因式分解:(x方+y方)-4x方y方?
4(X方+3X+1)方-(X方+X-4)方-(X方+5X+6)方因式分解
已知x方-2x+3=0,求2x方-4x+20
x方-4x+4
4x-x方-5
(x方+1)方-4x方,因式分解
(x方+4)方-16x方 因式分解
①x方-2x+2y-y方 ②x方+3x-40 ③2x方-7x+6 ④2x方-7xy+6y ⑤a方-b方+4a+2b+3 ⑥x方+2x-3 ⑦-y方+20y+96 ⑧2x方+x-3
x方-2x分之x方-4x+4除以x分之x方-4
(x方+4/x-4)/(x方-4/x方+2x)
已知x+y=4 x方y-方=20 求x-y的值
8/(x方+x)+2/(x方-x)=4/(x方-1)
x方-4x+3=(x- )方-1
x三次-4x方-x+4
x三次-4x方-5x
3x(2x方-x+4)
因式分解:(x-y)方-4(x方-y方)+4(x+y)方