5.8 square find the product by using identity
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Answer:
Step-by-step explanation:
( 5.8 )²
= ( 5 + 0.8 )² [∵(a + b)² = a² + 2ab +b² ]
= ( 5 )² + 2 × ( 5 ) × ( 0.8 ) + ( 0.8 )²
= 25 + 8 + 6.4
= 39.4 is the answer.
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