0,3 ; 0,154; 0,14; 0.0346; 0,008; 0,00055; 0,009; 0,00011, 2,7; 5,05
6x² - 5x + 2 = 0
D = 25 - 48 = - 23
Ответ: корней нет
<span>а) (201-(145+х))-16=14
</span><span>201-(145+х)=14+16
</span><span>201-(145+х)=30
</span><span>145+х=201-30
</span><span>145+х=171
</span><span>х=171-145=26
</span><span>х=26
</span>
б) <span>(38+(59-у)+15)=75
</span><span>38+(59-у)+15=75
</span><span>59-у=75-38-15
</span><span>59-у=22
</span><span>у=59-22
</span><span>у=37</span>
2(х-3)-(4х+7)=6
2х-6-4х-7=6
2х-4х=6+6+7
-2х=19
х= -9,5
Проверка:
2(-9,5-3)-(4• (-9,5)+7)=6
-19-6+38-7=6
6=6