Answer :
Simplify the expression by multipliaction of terms.
[tex]\begin{gathered} k(k-9)=k\cdot k-9\cdot k \\ =k^2-9k \end{gathered}[/tex]So answer is
[tex]k^2-9k[/tex]Simplify the expression by multipliaction of terms.
[tex]\begin{gathered} k(k-9)=k\cdot k-9\cdot k \\ =k^2-9k \end{gathered}[/tex]So answer is
[tex]k^2-9k[/tex]