Question

find the squares of the following numbers by using suitable identities a 209 b 599​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

here is the answer... hope it helps

Step-by-step explanation:

1. 209 =( 200+9)^2

➡we know that (a+b)^2=a^2+b^2+2ab

➡(200+9)^2= 200^2+9^2+2×200×9

➡=40000+81+3600

➡=43681

2. 599 = (600-1)^2

➡we know that (a-b)^2= a^2+b^2-2ab

➡ (600-1)^2=600^2+1^2-2×600×1

➡=360000+1-1800

➡=360001-1800

➡=358201

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