Question

If z=10 find vaue of z³-3(z-10)​

Answer 1

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Answer 2

Answer:

${z}^{3} - 3(z - 10) \\ { - 3z}^{4} + {30z}^{3} \\ z = 10 \\ = - 3 {(10)}^{4} + 3 0{(10)}^{3} \\ = - 3 \times 10000 + 30 \times 1000 \\ = - 30000 + 30000 \\ = 0$

therefore, 0 is the answer