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20-06-2016
Mathematics

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For y = 4x + 2x2 – x3, show how to find the value for y, when x = 2. Show your work

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Аноним Аноним

27-06-2016

To find the value of y in the given equation, substitute the given value of x to the equation.

y = 4x + 2x² -x³

Substitute 2 for all x's.

y = 4(2) + 2(2²) - 2³ = 8

Therefore, the value of y is 8.

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