你可能感兴趣的试题
a3+a3=a6 (3x)2=6x2 (x+y) 2= x2+y2 (-x-y)(y-x)=x2-y2
2x-y+2z=0 2x-y+2z=16 4x-3y+6z=42 4x-3y+6z=0
(﹣2xy)2=﹣4x2y2 x6÷x3=x2 (x﹣y)2=x2﹣y2 2x+3x=5x
x2+6xy+9y2=(x+3y)2 2x2﹣4xy+9y2=(2x﹣3y)2 2x2﹣8y2=2(x+4y)(x﹣4y) x(x﹣y)+y(y﹣x)=(x﹣y)(x+y)
6x-3y+2z=31 4x-y+2z=31 6x-3y+2z=10 4x-y+2z=10
2x -y+2z =0 2x-y+2z=16 4x-3y+6z=42 4x-3y+6z=0
-3x2y·5x2y=2x2y -2x2y3·2x3y=-2x5y4 35x3y2÷5x2y=7xy (-2x-y)(2x+y)=4x2-y2
2x+3y=5xy (﹣2x2)3=﹣6x6 3y2•(﹣y)=﹣3y2 6y2÷2y=3y
3x2+2x2=5x 4 (-x2)3=-x 6 (2x2y)2=2x4y2 (x+y2)2=x2+y4
﹣2x+3x=x 6xy2÷2xy=3y (﹣2x2y)3=﹣6x6y3 2xy2•(﹣x)=﹣2x2y2
x2-3y2 x2-6y2 x2-9y2 2x2-6y2
x4+x4=2x8 x3•x2=x6 (x2y)3=x6y3 (x﹣y)(y﹣x)=x2﹣y2
(x+1)(x+4)=x2+5x+4 (y+4)(y-5)=y2+9y-20 (m+2)(m-3)=m2-m-6 (x-3)(x-6)=x2-9x+18
2x-y+2z=0 2x-y+2z=16 4x-3y+6z=42 4x-3y+6z=0