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Quick maths question (1 Viewer)

seanle

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Aug 7, 2013
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HSC
2006
hi has anyone done a question from cambridge year 11 3 unit
2x^2 + ax + b+ 3 = 0 find the minimum value of a^2 + b^2. The equations has real roots. i get 8 ,the answers have 9
 

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