Question 1 (i)
Find the squares of the following numbers:
32

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Solution

$32^{2} = (30 + 2)^{2} ⌊ ∵ (a + b)^{2} = a^{2} + 2 a b + b^{2} ⌋ = 900 + 120 + 4 = 1024$

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