Question

X^2-2/9. x=-1 ; x=-2/3

Answer 1

Ответ:

Пошаговое объяснение:

x² - 2/9.

при x = -1 ;

(-1)² - 2/9 = 1 - 2/9 = 7/9

при x = -2/3

(-2/3)² - 2/9 = 4/9 - 2/9 = 2/9

Answer 2

To evaluate the expression $x^2 - \frac{2}{9}$ for $x = -1$ and $x = -\frac{2}{3}$, we substitute these values into the expression and perform the calculations.

For $x = -1$: $(-1)^2 - \frac{2}{9} = 1 - \frac{2}{9} = \frac{9}{9} - \frac{2}{9} = \frac{7}{9}$

For $x = -\frac{2}{3}$: $\left(-\frac{2}{3}\right)^2 - \frac{2}{9} = \frac{4}{9} - \frac{2}{9} = \frac{2}{9}$

Therefore, when $x = -1$, the expression $x^2 - \frac{2}{9}$ equals $\frac{7}{9}$, and when $x = -\frac{2}{3}$, the expression equals $\frac{2}{9}$.