Hur man löser ekvationer med huvudräkning, vilket stärker tankeförmågan och förbättrar minnet
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Köp båda 2 för 254 krIn this book I present a unique formula for quadratic equations, which is a rewriting of the p-q-formula. This rewriting resulted in the equations being solved almost twice as fast by the new formula, when it was compared in a test with the p-q-fo...
In this book I present a unique formula for quadratic equations, which is a rewriting of the p-q-formula. This rewriting resulted in the equations being solved almost twice as fast by the new formula, when it was compared in a test with the p-q-fo...