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Published 2009 Revised 2018
Take $\frac{S}{2} $ | $\frac{7}{2}$ | |||
Square it | $\frac{49}{4}$ | |||
Subtract the Product number | $\frac{49}{4}-\frac{48}{4}$ | |||
Find the square root of the result | $\frac{1}{2}$ | |||
This is the number you add to and subtract from | $\frac{7}{2}$ | |||
So we have (7/2 + 1/2) and (7/2 - 1/2) which are 4 and 3 | ||||
$~~~$ |