你可能感兴趣的试题
1-x-3=3x 6-x-3=3x 6-x+3=3x 1-x+3=3x
y=3x2或y=-3x2 y=3x2 y2=-9x或y=3x2 y=-3x2或y2=9x
2x+3x=9+5 2x﹣3x=9+5 2x﹣3x=﹣9+5 2x﹣3x=9﹣5
x2+x2+x2 x2·x2·x2 3x·3x 9x
6x2+3x=9x3 6x2÷3x=2x (﹣6x2)3=36x6 6x2•3x=18x2
1﹣x﹣3=3x 6﹣x﹣3=3x 6﹣x+3=3x 1﹣x+3=3x
xe3x(ax+ x2e3x(ax+ e3x(ax+ ae3xx3
3(-x2n+3xn) -3(x2n-3xn) -3xn(xn+3) -3xn(x2+3)
6x2+3x=9x3 6x2·3x=18x2 (-6x2)3=36x6 6x2÷3x=2x
1-x-3=3x 6-x-3=3x 6-x+3=3x 1-x+3=3x
(x3)4=x7 x3•x4=x12 (﹣3x)2=9x2 2x2+x2=3x4