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Finding Square of a Number Using Identity

iii Find the ...

Question

Question 1 (iii)
Find the squares of the following numbers:

86

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Solution

$86^{2} = (80 + 6)^{2} ⌊ ∵ (a + b)^{2} = a^{2} + 2 a b + b^{2} ⌋ = 6400 + 960 + 36 = 7396$

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Question 1 (iii)
Find the squares of the following numbers:

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

Find the square of the following numbers

(i) 32 (ii) 35

(iii) 86 (iv) 93

(v) 71 (vi) 46

32

35

86

93

71

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Question 1 (iii)
Find the square roots of each of the following numbers by Division method:

3481

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