We have
.
First let us factor the 2 to obtain,

We can now see clearly that the expression inside the parentheses is a difference of two squares.
We now write the 4 as 2². So that we obtain the expression,

Recall that

Hence our expression becomes,

Therefore, when factored completely,

<span>the first term 13m has TWO factors 13 and m
the second term 2n has TWO factors 2 and n</span>
The answer is negative 1 . Because to find slope use formula . M=y2-y1/x2-x1 (1,-3) & (3,-5)
-5-3/3-1=-1