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Sečti mnohočleny
Sečti mnohočleny:
\large a^{3}+b^{3}- \left \{ 1,5 ab-3b^{3}- \left[ a^{3}+1,5ab- \left( -b^{3} + a^{3} \right) \right] \right \}
=a^{3}+b^{3}-\left \{ –2b^{3} \right \} =
=a^{3}+b^{3}+2b^{3}=
\large =a^{3}+3b^{3}
=a^{3}+b^{3}-\left \{ –3b^{3} \right \} =
=a^{3}+b^{3}+3b^{3}=
\large =a^{3}+4b^{3}
=a^{3}+b^{3}-\left \{ –4b^{3} \right \} =
=a^{3}+b^{3}+4b^{3}=
\large =a^{3}+5b^{3}
=a^{3}+b^{3}-\left \{ –5b^{3} \right \} =
=a^{3}+b^{3}+5b^{3}=
\large =a^{3}+6b^{3}