Question

using identities evaluate (202) power 2​

Answer 1

Answer:

202² =(200+2)²

using identity (a+b)² =a² +b² +2ab

200² + 2²+2×200×2

40000+4+800

40804

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Answer 2

Answer:

$(200 + 2) {} {}^{2}$

By using identity

$(x + y) {}^{2} = x {}^{2} + 2xy + y {}^{2} \\ = (40000 + 800 + 4 )\\ =40804$