①(x+4x+8)+3x(x+4x+8)+2x②(2x-3x+1)-22x+33x-1③(6x-1)(2x-1)(3x-1)(x-1)+x
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①(x+4x+8)+3x(x+4x+8)+2x②(2x-3x+1)-22x+33x-1③(6x-1)(2x-1)(3x-1)(x-1)+x①(x+4x+8)+3x(x+4x+8)+2x②(2x-3x+
①(x+4x+8)+3x(x+4x+8)+2x②(2x-3x+1)-22x+33x-1③(6x-1)(2x-1)(3x-1)(x-1)+x
①(x+4x+8)+3x(x+4x+8)+2x②(2x-3x+1)-22x+33x-1③(6x-1)(2x-1)(3x-1)(x-1)+x
①(x+4x+8)+3x(x+4x+8)+2x②(2x-3x+1)-22x+33x-1③(6x-1)(2x-1)(3x-1)(x-1)+x
① =[(x+4x+8)+2x][(x+4x+8)+x] =(x+6x+8)(x+5x+8) =(x+2)(x+4)(x+5x+8) ② =(2x-3x+1)-22x+33x-1 =(2x-3x+1)-22x+33x-11+10 =(2x-3x+1)-11(2x^2-3x+1)+10 =(2x-3x+1-1)(2x-3x+1-10) =(2x-3x)(2x-3x-9) =x(2x-3)(x-3)(2x+3) ③ =[(6x-1)(x-1)][(2x-1)(3x-1)]+x =[(6x+1)-7x][(6x+1)-5x]+x =(6x+1)-12x(6x+1)+35x+x =(6x+1)-12x(6x+1)+36x =(6x-6x+1) 好啦,应该是因式分解吧.至于是什么定理做的就不说啦 希望你能好好学习,数学靠的是多做题目,和理解了做题.多看看书上的例题应该对你有所帮助!
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难倒爱因斯坦的九宫格X 7 X | X 8 1 | X X X |X X X | X 4 X | 7 5 9 |X X 5 | 7 X 9 | X 1 4 |5 X X | X X 8 | 3 9 X |3 9 6 | 4 X 7 | X X 2 |X 8 7 | 9 X X | X X X |4 X X | 6 X 5 | X X X | X X 4 | X X 1 |2 X X | X X X | X X X | X 3 X | X X X |X 6
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