Factors of the polynomial
2x square+x-1
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2xsqre+2x+x-1
2x (x+1)+1 (x+1)
2x+1=0
x+1=0
x=-1
2x=-1
x=-1/2
2x (x+1)+1 (x+1)
2x+1=0
x+1=0
x=-1
2x=-1
x=-1/2
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