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8a^{6}-64a^{3}+144a^{2}-108a+27
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8a^{6}-64a^{3}+144a^{2}-108a+27
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8a^{6}-\left(64a^{3}-144a^{2}+108a-27\right)
Use binomial theorem \left(p-q\right)^{3}=p^{3}-3p^{2}q+3pq^{2}-q^{3} to expand \left(4a-3\right)^{3}.
8a^{6}-64a^{3}+144a^{2}-108a+27
To find the opposite of 64a^{3}-144a^{2}+108a-27, find the opposite of each term.
8a^{6}-\left(64a^{3}-144a^{2}+108a-27\right)
Use binomial theorem \left(p-q\right)^{3}=p^{3}-3p^{2}q+3pq^{2}-q^{3} to expand \left(4a-3\right)^{3}.
8a^{6}-64a^{3}+144a^{2}-108a+27
To find the opposite of 64a^{3}-144a^{2}+108a-27, find the opposite of each term.
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