Question

62²,Find the value using expansion formula.

Answer 1

=(60+2)*2
=60*2+2*2+2x 2x60
=3600+4+240
3844

Answer 2

BONJOUR,
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$62 {}^{2} = (60 + 2) {}^{2} \\ then \: using \: identity \\ \\ 60 {}^{2} + 2 \times 60 \times 2 + 2 {}^{2} \\ \\ 3600 + 240 + 4 = 3844$