Evaluate
2\left(k-1\right)^{3}
Expand
2k^{3}-6k^{2}+6k-2
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2\left(k^{3}-3k^{2}+3k-1\right)
Use binomial theorem \left(a-b\right)^{3}=a^{3}-3a^{2}b+3ab^{2}-b^{3} to expand \left(k-1\right)^{3}.
2k^{3}-6k^{2}+6k-2
Use the distributive property to multiply 2 by k^{3}-3k^{2}+3k-1.
2\left(k^{3}-3k^{2}+3k-1\right)
Use binomial theorem \left(a-b\right)^{3}=a^{3}-3a^{2}b+3ab^{2}-b^{3} to expand \left(k-1\right)^{3}.
2k^{3}-6k^{2}+6k-2
Use the distributive property to multiply 2 by k^{3}-3k^{2}+3k-1.
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