## Algebra: A Combined Approach (4th Edition)

$-\dfrac{5}{3}$
Given $\dfrac{x^2-y+2z}{3x} ,$ if $x=-2 \ , \ y = 0$ and $z = 3$ $\dfrac{(-2)^2-0+2\times 3}{3\times (-2)} = \dfrac{4+6}{-6} = -\dfrac{10}{6} = -\dfrac{5}{3}$