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6x3+1 6x3﹣3 6x3﹣3x2 6x3+3x2
6x2+3x=9x3 6x2÷3x=2x (﹣6x2)3=36x6 6x2•3x=18x2
5x2+3x=8x3 6x2•3x=18x2 (﹣6x2)3=﹣36x6 6x2÷3x=2x
若x2=6x,则x=6 若﹣3x=1,则x=﹣3 若x=y,则 若,则x=y
﹣2(3x﹣1)=﹣6x﹣1 ﹣2(3x﹣1)=﹣6x+1 ﹣2(3x﹣1)=﹣6x﹣2 ﹣2(3x﹣1)=﹣6x+2
﹣6x2﹣15x2﹣3x ﹣6x3+15x2+3x ﹣6x3+15x2 ﹣6x3+15x2﹣1
6x2+3x=9x3 6x2·3x=18x2 (-6x2)3=36x6 6x2÷3x=2x
﹣2(3x﹣1)=﹣6x﹣1 ﹣2(3x﹣1)=﹣6x+1 ﹣2(3x﹣1)=﹣6x﹣2 ﹣2(3x﹣1)=﹣6x+2
x2+3x-6 -x2+3x x2-3x-6 x2-3x
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