(3m - 2n)³
[tex] {(3m - 2n)}^{3} \\ =( 3m - 2n)(9 {m}^{2} - 12mn + 4 {n}^{2} ) \\ = 27 {m}^{3} - 36 {m}^{2} n + 12m {n}^{2} - 18 {m}^{2} n + 24m {n}^{2} - 8 {n}^{3} \\ = 27 {m}^{3} - 54 {m}^{2} n + 36m {n}^{2} - 8 {n}^{3} [/tex]
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(6a + 3b - 4c)²
[tex] {(6a + 3b - 4c)}^{2} \\ = 12 {a}^{2} + 36ab - 48ac - 9 {b}^{2} - 24bc + 16 {c}^{2} [/tex]
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