1) -5а⁴+30а³-15а
2)3х²-2х+12х-8=3х²+10х-8
3)42m²+35mn-18mn-15n₇²=42m²+17mn-15n²
4)x³+5x²+x²+5x-6x-30=x³+6x²-x-30
77*16/11= 7*16= 112 - искомое число
проверяем:
112*11/16= 1232/16= 77
H=9 м
р=1030 кг/м^3
g=10 H/кг
р-?
р=рgh
p=1030×10×9=92700Па=92,7кПа
-<span>√605</span>
<span><span>√294</span></span>
<span><span>-<span>√845</span></span></span>
<span><span><span>-<span>√72</span></span></span></span>
<span><span><span><span>-<span>√50</span></span></span></span></span>
<span><span><span><span><span><span>√80/7</span></span></span></span></span></span>
<span><span><span><span><span><span><span>√5z^2</span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span>√11t^2</span></span></span></span></span></span></span></span>