5.8-1.5х+6=23.8
-1.5х=23.8-5.8-6
-1.5х=12
х= -8
1)8/(b-3)=8(b+3)/(b²-9)
2)
=
=
x=8,2 y=0,41 8,2/5*0,41=8,2/2,05=4
<span>В^3 +1 дробная черта В^2-B+1=(b+1)(b^2-b+1)/(В^2-B+1)=b+1</span>
A)EF(-10,-6),GH(12,12)
b)EG(-18,-4) , (-18)kv. + (-4)kv = 324+16=340, eto numero nado eščo odmocnit.
c)1/2(7-3)=2, 1/2(1-5)=-2
W/2,-2/
А) (3у^2-3у+1)-(4у-2)=3у^2-3у+1-4у+2
б) 4b^3(3b^2+b)= 12b^6+4b^4