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What is the value of 2x3 + x2 - x when x = 3?

2 Answers

4 votes
2x3 + x2 , x = 3
= 2*3*3 + 3*2
= 18 + 6
= 24
Hence 24 is the answer
User Anuja
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4 votes

Answer:


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x = 3


{2x}^(3) + {x}^(2) - x \\ = 2(3) {}^(3) + (3) {}^(2) - 3 \\ = 2 * {3}^(3) + {3}^(2) - 3 \\ = 2 * 27 + 9 - 3 \\ = 54 + 9 - 3\\ = 63 - 3 \\ = 60

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User Mtreit
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