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Explanation:
The problem tells you that the product of two consecutive odd integers is equal to
783
.
Right from the start, you know that you can get from the smaller number to the bigger number by adding
2
.
You need to add
2
because if you start with an odd number and add
1
, you end up with an even number, which is not supposed to happen here.
odd number
+
1
=
the consecutive even number
×
odd number
+
2
=
the consecutive odd number
√
So, if you take
x
to be the first number, you can say that
x
+
2
is the second number, which means that you have
x
⋅
(
x
+
2
)
=
783