$-2020\right)$
ge $n^{2}α:20$
$→.1$ $12\right)$
$1.\pi $ a fea
(a) ufata (b) ufa (c) Y
a) 2 $b\right)0$ c) 1 d) 3
2 $b\right)0$ c) 1 d) 3
a)
a) 2 $b\right)0$ c) $d\right)3$
5. Had $p\left(x\right)=ax^{2}+bx+c$ fea 1 è urt ae 3t $c3\pi $ p(x) è fa a ha ha a a e
a) 0 b) 1 c) freat er
6. Had Htadt $kx-y=2$ m3 $6x-2y=3$ e fea a a k
a) $k=3$ b) k *3 c) $k≠0$ d) k = 0
$k\vec{d} \pi \bar{an} $
a) fea ds c) oat ds
a) 1 $b\right)0$ $c\right)2$ d) fést fe at a