Answer :
Step-by-step explanation:
To find the square of 202 using the formula \((a + b)^2 = a^2 + 2ab + b^2\), we can let \(a = 200\) and \(b = 2\), as 202 can be expressed as \(200 + 2\).
Substitute the values into the formula:
\((200 + 2)^2 = 200^2 + 2 \times 200 \times 2 + 2^2\)
Now calculate each part:
\(200^2 = 40,000\)
\(2 \times 200 \times 2 = 800\)
\(2^2 = 4\)
Now add these values:
\(40,000 + 800 + 4 = 40,804\)
So, the square of 202 using the formula is 40,804.