计算4x方-4xy+y方-4x+2y-15 4x方y方-5x方y方-9y方计算4x方-4xy+y方-4x+2y-15 4x方y方-5x方y方-9y方
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计算4x方-4xy+y方-4x+2y-154x方y方-5x方y方-9y方计算4x方-4xy+y方-4x+2y-154x方y方-5x方y方-9y方计算4x方-4xy+y方-4x+2y-154x方y方-5
计算4x方-4xy+y方-4x+2y-15 4x方y方-5x方y方-9y方计算4x方-4xy+y方-4x+2y-15 4x方y方-5x方y方-9y方
计算4x方-4xy+y方-4x+2y-15 4x方y方-5x方y方-9y方
计算4x方-4xy+y方-4x+2y-15
4x方y方-5x方y方-9y方
计算4x方-4xy+y方-4x+2y-15 4x方y方-5x方y方-9y方计算4x方-4xy+y方-4x+2y-15 4x方y方-5x方y方-9y方
4x方-4xy+y方-4x+2y-15
=(2x-y)^2-2(2x-y)-15
=(2x-y-5)*(2x-y+3)
4x方y方-5x方y方-9y方 题目弄错了吧,应该是这样的吧
=4x^2y^2-5xy-9y^2
=(4x-9y)*(x+y)
x方-xy+1/4y方
计算4x方-4xy+y方-4x+2y-15 4x方y方-5x方y方-9y方计算4x方-4xy+y方-4x+2y-15 4x方y方-5x方y方-9y方
x方+y方-x方y方-4xy-1因式分解
((3/2x方+xy-3/5y方)*(-4/3x方y方)
(3/2x方+xy-3/5y方)*(-4/3x方y方)
计算 x-2分之x方+1-2-x分之3-4x (x+y)x方-y方分之x方+y-x分之y方
已知:3x方+xy-2y方=0,求(x+y/x-y + 4xy/y方-x方)除以 x方+2xy-3y方 / x方-9y方的值?
因式分解:3X方-4XY-2Y方
因式分解2x方-4xy-y方
2x方-4xy+y方因式分解是
已知x方*y方+x方+y方+1=4xy,求xy的值
求单项式2xy,6x方y方,-3xy,-4x方y方的和;
4X方﹢Y方﹢XY=1,则2X+Y的最大值
计算 x方/x-y+y方/x-y-2x方y-2xy方/x方-2xy+y方 答案为x+y
计算:(2x方+xy-4x-2y)÷(2-x)计算:(2x方+xy-4x-2y)÷(2-x)
已知3X方-xy-4y方=0,求分式xy-3x方/2y方-5xy-3x方的值
24xy(x+y)的2方+4xy(x+y)的3方
因式分解:(x方+y方)-4x方y方?