1,4<√2<1,5
2,8<2√2<3
<span>1,4<√2<1,5
</span>1,7<√3<1,8
2,38<√6<2,7
<span>a)2,8<2√2<3
</span>-2,7<-√6<-2,38
0,1<2√2-√6<0,62
b)<span>1,4<√2<1,5
</span><span>1,7<√3<1,8
3,1<</span>√2+√3=3,3
10/33<1/(√2+√3)<10/31
1
а) 3а-4ах+2-11а+14ах=10ах-8а+2=2(5ах-4а+1)
б)3y^5+3у^2
2
a)5b(2a-3b)
б)6а^2(3а+1)
Г)162!!x1^3+x2^3=(x1+x2)((x1+x2)^2-3x1x2)
x1+x2=-b=-3
x1x2=c=-15