2^4=16 0,125=1/8=(1/2)^3=2^-3
(2^4 * 2^-3)^6=2^6=64
<span>/x+2/-/3x+1/+/4-x/=3
</span><span>x+2-3x-1+4+x=3
-х+5-3=0
х=3-5=-2
</span><span>/-2+2/-/3(-2)+1/+/4-(-2)/=3
2+2-3х2-1+4+2=3
3=3</span>
112²-62²=(112-62)(112+62)=50*174=50*2*87=100*87=8700
0,25 +1/12/(5/12-9/16)=0,25 +1/12/(-7/48)=0,25 - 4/7= -9/28