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kirill [66]
2 years ago
6

The cube less the square of a number is twice the number. If x is a positive integer, what is its value

Mathematics
1 answer:
olga55 [171]2 years ago
3 0

Answer:

2

Step-by-step explanation:

let 'x' = number

x³ - x² = 2x

x³- x² - 2x = 0

x(x² - x - 2) = 0

x(x - 2)(x + 1) = 0

x = -1, 0, 2

the only positive solution is the number 2

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