find the square of the following using the identity ( a+b)=a2+2ab+b2. 102
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Answer:
10404
Step-by-step explanation:
102=(100+2)
Now, (100+2)²
(a+b)²=a²+b²+2ab
Therefore,
(100+2)²=100²+2²+2×100×2
=10000+4+400
=10404
Therefore, 102²( i.e 100+2 )²=10404
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