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6x3+1 6x3﹣3 6x3﹣3x2 6x3+3x2
(﹣2x2)3=﹣6x6 x2•x3=x6 6x4÷3x3=2x x2+x3=2x5
6x2+3x=9x3 6x2÷3x=2x (﹣6x2)3=36x6 6x2•3x=18x2
(3x-1)(2x+5) (3x十1)(2x+5) (3x+1)(2x-5) 3x十1) (2x-5)
(3x+2)(x+5) (3x-2)(x-5) (3x-2)(x+5) (x-2)(3x+5)
(x+2)(x-6) (x-2)(x+6) (x+3)(x-4) (x-3)(x+4)
3x-2x=1 2x+2x=4x2 x3•x-1=x2 (-a3)2=a5
6x2+3x=9x3 6x2·3x=18x2 (-6x2)3=36x6 6x2÷3x=2x
四格表的x2值为5 四格表的较正值x2为4.5 用x2=(|b-c|-1)/(b+c)计算x2值 用x2=(b-c/b+c)计算x2值 用x2=计算x2值
(x-6)(x+1) (x+6)(x-1) (x-2)(x+3) (x+2)(x-3)
(3x﹣1)(2x+5) (3x+1)(2x+5) (3x+1)(2x﹣5) (3x+1)(2x﹣5)