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Solve y = 2x^2 - 5x - 1 for x = -1 and x = 2

y = 2 (-1)2 -5(-1) -1y = 2 + 10 - 1y = 11y = 2 (2)2 -5(2) -1y = 8 - 10 -1y = -3

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Answered by Anna B. • Maths tutor

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