N1
a)2x²+6x-8=2(x²+3x-4)=2(x×(x+4)-(x-4))=2(x+4)×(x-1)
б) -x²-x+6=-x²+2x-3x+6=x×(x-2)-3×(x-2)= -(x-2)×(x+3)
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Answers & Comments
N1
a)2x²+6x-8=2(x²+3x-4)=2(x×(x+4)-(x-4))=2(x+4)×(x-1)
б) -x²-x+6=-x²+2x-3x+6=x×(x-2)-3×(x-2)= -(x-2)×(x+3)