hello
from the question given we know that he area of a rectangle is given as
[tex]A=L\times W[/tex]
there are two possible set of values for L and W which will give 15 and they are either 3 and 5 or 1 and 15 or 5 and 3 or 15 and 1.
so the set of possible values are
[tex]\begin{gathered} A=3\times5 \\ A=5\times3 \\ A=1\times15 \\ A=15\times1 \end{gathered}[/tex]
