9y²-66yz+121z² a mathematics question polynomials class 9th
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9Y² - 66YZ + 121Z²
9Y² + 121Z² - 66YZ it is in the form of a² + b² - 2ab.
As we know that,
a² + b² - 2ab = ( a - b )²
So,
9Y² + 121Z² - 66YZ = ( 3Y - 11Z)²
Hence,
9Y² - 66YZ + 121Z² = ( 3Y + 11Z)² [ Answer ]
9Y² + 121Z² - 66YZ it is in the form of a² + b² - 2ab.
As we know that,
a² + b² - 2ab = ( a - b )²
So,
9Y² + 121Z² - 66YZ = ( 3Y - 11Z)²
Hence,
9Y² - 66YZ + 121Z² = ( 3Y + 11Z)² [ Answer ]
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