# Show that there is no constant term in the expansion of (2x - x^2/4)^9​​​​​​​

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Show that there is no constant term in the expansion of (2x - x2/4)9

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Here, a = 2x, b = -x2/4, n = 9.

We have

To get the constant term, we must have

$\therefore$ There is no constant term in the expansion of

(2x - x2/4)9.