If alpha and beta are the zeroes of the quadratic polynomial x²-x+1, then find alpha²+beta²
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Step-by-step explanation:
given alpha, beta are zeroes
alpha^2 +beta^2=(alpha+beta)^2-2alpha×beta
=-(-1)÷1-2×1÷1
=1-2=-1
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Answer:
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Step-by-step explanation:
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