相关试题
-
下列多项式乘法计算题中,不能用平方差公式计算的是( )
A.(2x-3y)(2x+3y)
B.(2x-3y)(-2x+3y)
C.(2x-3y)(-2x-3y)
D.(-2x+3y)(2x+3y)
-
(1)计算:2sin60°-
+(
)-1+(-1)2010;
(2)计算:[(2x-y)(2x+y)+y(y-6x)]÷2x;
(3)解方程:2x2-3x-1=0
-
(1)计算:2sin60°-
+(
)-1+(-1)2010;
(2)计算:[(2x-y)(2x+y)+y(y-6x)]÷2x;
(3)解方程:2x2-3x-1=0
-
(1)计算:(-1)2÷
+(7-3)×
-(
);
(2)计算:[(2x-y)(2x+y)+y(y-6x)]÷2x;
(3)解方程:x2-6x+1=0.
-
(1)计算:(-1)2÷
+(7-3)×
-(
);
(2)计算:[(2x-y)(2x+y)+y(y-6x)]÷2x;
(3)解方程:x2-6x+1=0.
-
(1)计算:(-1)2÷
+(7-3)×
-(
);
(2)计算:[(2x-y)(2x+y)+y(y-6x)]÷2x;
(3)解方程:x2-6x+1=0.
-
(1)计算:(-1)2÷
+(7-3)×
-(
);
(2)计算:[(2x-y)(2x+y)+y(y-6x)]÷2x;
(3)解方程:x2-6x+1=0.
-
(1)计算:(-1)2÷
+(7-3)×
-(
);
(2)计算:[(2x-y)(2x+y)+y(y-6x)]÷2x;
(3)解方程:x2-6x+1=0.
-
(1)计算:(-1)2÷
+(7-3)×
-(
);
(2)计算:[(2x-y)(2x+y)+y(y-6x)]÷2x;
(3)解方程:x2-6x+1=0.
-
(1)计算:(-1)2÷
+(7-3)×
-(
);
(2)计算:[(2x-y)(2x+y)+y(y-6x)]÷2x;
(3)解方程:x2-6x+1=0.