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When x = (1)/(9) and y = (-3)/(4), then ...

When `x = (1)/(9) and y = (-3)/(4)`, then the value of the expression `81x^(2) +16y^(2) -72xy` is

A

`9/4`

B

`9/16`

C

25

D

16

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The correct Answer is:
D
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