Given:
[tex]\begin{gathered} x^2-xy \\ \text{and} \\ x=8 \\ y=-3 \end{gathered}[/tex]Find: Evaluate the expression:
Sol:.
[tex]\begin{gathered} x^2-xy \\ x=8 \\ y=-3 \end{gathered}[/tex]Put the value of "x" and "y" then:
[tex]\begin{gathered} =x^2-xy \\ =(8)^2-(8)(-3) \\ =64+24 \\ =88 \end{gathered}[/tex]So the value of expression is 88
