你可能感兴趣的试题
5x3+2x 6x3+1 6x3+2x 6x2+2x
x2+2 x2+3x+2 x2+3x+3 x2+2x+2
(a+b)(a﹣b)=a2﹣b2 (x+1)(x﹣1)=x2﹣1 (2x+1)(2x﹣1)=2x2﹣1 (﹣3x+2)(﹣3x﹣2)=9x2﹣4
3x-2x=1 3x+2x=5x2 3x·2x=6x 3x-2x=x
3x-2x=1 2x+2x=4x2 x3•x-1=x2 (-a3)2=a5
5x3+2x 6x3+1 6x3+2x 6x2+2x
x2﹣2x+1 x2﹣2x﹣3 x2+x﹣3 x2﹣3
x6÷x3=x2B (x-1)2=x2-1 x4+x4=x8 (x-1)2=x2-2x+1
2x2+x﹣3 2x2﹣x﹣3 2x2﹣x+3 x2﹣2x﹣3
(a﹣b)(a﹣b)=a2﹣b2 (x+2)(x﹣2)=x2﹣2 (2x+1)(2x﹣1)=2x2﹣1 (﹣3x+2)(﹣3x﹣2)=9x2﹣4
(x+3)(x-2) (-1-3x)(1+3x) (a2+b)(a2-b) (3x+2)(2x-3)