(a+b)=a²+2ab+b² Using this formula substitute this number (103)²
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Answer:
10609
Step-by-step explanation:
( 103 )²
= ( 100 + 3 )²
= ( 100 )² + 2 × 100 × 3 + ( 3 )²
= 10000 + 600 + 9
= 10609
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