0,82+p 2t+2p t2-p2 в квадрате
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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
F(-4) = -4+4 = 0
f(2) = 2 + 4 = 6
f(b)= b + 4
f(b+2) = b+2+4 = b+6
удачи!