(39)² ALGEBRAIC IDENTITIES APPLICATION
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Answer:
Step-by-step explanation:
Given that,
( 39 )²
= ( 50 - 11 )² [∵(a - b ) = a² + b² - 2ab ]
= ( 50 )² + ( 11 )² - 2 ( 50 ) ( 11 )
= 2500 + 121 - 1100
= 2621 - 1100
= 1521 is the answer.
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