The sum of the given expression will be equal to -3.
What is an Algebra?
Algebra is the study of mathematical symbols and the rules for manipulating them in formulas; it is a common thread that runs through practically all of mathematics.
given expression:
=[tex]\left[\begin{array}{c}2&3\end{array}\right][/tex] + [tex]\left[\begin{array}{c}-5&6\end{array}\right][/tex]
= [tex]\left[\begin{array}{c}2 +(-5)&3+6\end{array}\right][/tex]
=[tex]\left[\begin{array}{c}-3&9\end{array}\right][/tex]
hence, the sum of the given expression -3.
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