Question

ajutatima varog la aceste ex.

Answer 1

2.
$\left \{ {{ \frac{ x^{2} -7}{3x-2} } \atop {x=2}} \right.$
$\frac{ (-2)^{2} -7}{3(-2)-2} = \frac{4-7}{-6-2} = \frac{-3}{-8} = \frac{3}{8}$

3.
$\frac{2x(x-2)}{(x+2)(x-2)} = \frac{2 x^{2} -4}{ x^{2} -4}$