Question

$9 a ^{2} \: +16z ^{2} + 25 ^{2} + 24ab + 40bc - 30c ^{2}$
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Answer 1

HELLO !!

The intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.

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Answer 2

Gummie,

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I am From Bihar

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