2x^2-x+1 factorisation by identities
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Answer:
2x^2-x+1
2x^2+x-2x+1
x(2x+1)-1(2x+1)
(x-1) (2x+1)
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2x²-x+1
→ 2x²+2x-x-1 =0
→ 2x(x + 1)– 1(x+1) = 0
→ (2x-1) (x+1) = 0
→ 2x–1 = 0 or x+1 = 0
→ x= -1/2 or x= -1
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