if x-1 is a factor of 2x²-x-1. then find the other factor
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if x-1 is a factor of 2x²-x-1. then find the other factor
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2x²-x-1
= 2x²-2x+x-1
=2x(x-1)+1(x-1)
=(2x-1)(x-1)
so another factors is 2x-1