Which has the larger area, a square with sides that are x +1 units long or a rectangle with a length of x +2 units and a width o
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Taking the square root of both sides gives two possible cases,
or
Recall that
If and
, we have
so in the equations above, we can write
Then in the first case,
(where is any integer)
and in the second,
Then the solutions that fall in the interval are
