how to find square of number by column method
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Column Method : We can find the square of a number using the formula (a+b)^2 = a^2 + 2ab + b^2 For example, let us consider a number 98, Step 1 : Consider a = 9 and b = 8. From the formula, let us take a^2 as column 1, 2*a*b as column 2 and b^2 as column 3.
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