lanicanea
lanicanea
30-10-2018
Mathematics
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The expression (3+z)^3 is equivalent to
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MsLeo
MsLeo
30-10-2018
[tex] {(3 + z)}^{2} \\ = {3}^{3} + {z}^{3} + 3 \times 3 \times z(3 + z) \\ = 27 + {z}^{3} + 9z(3 + z) \\ = 27 + {z}^{3} + 27z + 9 {z}^{2} \\ = {z}^{3} + 9 {z}^{2} + 27z + 27[/tex]
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