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Question

Find the square of the following numbers
(i) 32
(ii) 35
(iii) 86
(iv)93
(v) 71
(vi) 46

Solution
Verified by Toppr

(i) 322=(30+2)(30+2)
=900+60+60+4
=1024
(ii) 352=(30+5)(30+5)
=900+150+150+25
=1225
(iii) 862=(80+6)(80+6)
=6400+480+480+36
=7396
(iv) 932=(90+3)(90+3)
=8100+270+270+9
=8649
(v)712=(70+1)(70+1)
=4900+140+1
=5041
(vi) 462=(40+6)(40+6)
=1600+480+36
=2080+36
=2116.

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