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Factorise the following expression: ( ...

Factorise the following expression:
( i) ` 4x^(2) +9y^(2) +25z^(2) +12xy +30yz + 20zx`
(ii) ` 25x^(2) +4y^(2) +9z^(2) -20 xy +12yz - 30zx`

Text Solution

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The correct Answer is:
` = (5x-2y -3z )^(2) `
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