Encyclopedia > List of battles 1901-forward

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List of battles 1901-forward

List of battles - List of battles 1400 BC-600 AD - List of battles 601-1400 - List of battles 1401-1800 - List of battles 1801-1900 - List of battles 1901-forward

Twentieth Century



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Quadratic formula

... to the expression to the left of "=", that will make it a perfect square trinomial of the form x2 + 2xy + y2. Since "2xy" in this case is (b/a)x, we must have y = b/(2a), ...

 
 
 
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