0.5х2-2х=0
х(0.5х-2)=0
х=0 (0.5х-2)=0
0.5х=2
х=4
Ответ:0;4
<span><span>аn <span>=a1 +d(n-1)</span></span>
a1=-101? d=-96-(-101)=5</span>
<span /><span>-96+5(
n-1) ˃0</span>
<span /><span><span>5n<span>˃96+5 n<span>˃ 20,2 n=21</span></span></span>
</span>