6+x-x² find the root
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6+x-x²=0
➨x²-x-6 =0
➨x²+3x-2x-6=0
➨x(x+3) -2(x+3)=0
➨(x+3)(x-2)=0
➨(x+3)=0 or (x-2)=0
➨x⤇-3 or x⤇2
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