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use formulae
a^3+b^3+c^3=(a+b+c)(a^2+b^2+c^2-ab-bc-ca) +3abc
now put values
=(2)(a^2+b^2+c^2-1(-1))
=2a^2+2b^2+c^2+2
now
(a+b+c)^2=(2)^2
a^2+b^2+c^2+2ab+2bc+2ca=4
a^2+b^2+c^2+2(-1)=4
a^2+b^2+c^2=4+2=6
now putting value
2(6+1)
2(7)
14
so a^3+b^3+c^3=14
a^3+b^3+c^3=(a+b+c)(a^2+b^2+c^2-ab-bc-ca) +3abc
now put values
=(2)(a^2+b^2+c^2-1(-1))
=2a^2+2b^2+c^2+2
now
(a+b+c)^2=(2)^2
a^2+b^2+c^2+2ab+2bc+2ca=4
a^2+b^2+c^2+2(-1)=4
a^2+b^2+c^2=4+2=6
now putting value
2(6+1)
2(7)
14
so a^3+b^3+c^3=14
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