2.499+ 1.028+25.0009+300.4+47.4663=376.3942
(10^6)-(20^4)=1 000 000-160 000= 840 000
<span>( 700 : x+ 20 ) : 4 = 40
</span><span>700 : x+ 20 = 40 * 4
</span><span>700 : x+ 20 = 160
</span>700 : x = 160 - 20
700 : х = 140
х = 700 : 140
х = 5
Проверка:
( 700 : 5+ 20 ) : 4 = 40
40 = 40
(3^x²-81)*√(1-x)=0
3^x²=81 1-x>=0
3^x²=3^4 x<=1
x²=4
x=+-2;
ОТ:-2,1
263127+
736452
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999579