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

Sagot :

blackshades

Answer:

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[tex]x = 3[/tex]

[tex] {2x}^{3} + {x}^{2} - x \\ = 2(3) {}^{3} + (3) {}^{2} - 3 \\ = 2 \times {3}^{3} + {3}^{2} - 3 \\ = 2 \times 27 + 9 - 3 \\ = 54 + 9 - 3\\ = 63 - 3 \\ = 60 [/tex]

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

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soulphilip0801
2x3 + x2 , x = 3
= 2*3*3 + 3*2
= 18 + 6
= 24
Hence 24 is the answer
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