<span>x²-3x+2
=х²-2х-х+2=х(х-2)-(х-2)=(х-2)(х-1)</span>
1) f(3)= 5
f(-4)= -9
f(0)= -1
f(-0.5)= 0
f(3,2)= 5,4
_________
2)f(x)=7 при x+4
<span>f(x)=-9 при x= -4
</span>f(x)=0 при х=-0.5
<span>f(x)=-2.4 при х= 0,7
__________
3) да
нет
нет</span>
1)x-y+ax-ay=(x-y)+(ax-ay)=
=(x-y)+а(x-у)=(1+а)(х-у)
2)4ab²-3b²+8a²b-6ab=
=b²(4a-3)+2ab(4a-3)=
=(4a-3)(b²+2ab)=
=(4a-3)(b(b+2a))
(4a-3)(b(b+2a))=
=(4a-3)(b²+2ab)=4ab²+8a²b-3b²-6ab