Question

Find the square of 68 by using (a+b)² identity​

Answer 1

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$\boxed{ \red{\begin{gathered} {68}^{2} = (60 + 8) {}^{2} \\ \sf Using \: identity \: (a + b) {}^{2} \\ 60 {}^{2} + 2 \times 60 \times 8 + 8 {}^{2} \\ 3600 + 960 + 64 \\ {68}^{2} = 4624 \end{gathered} }}$

Answer 2

Answer:

(68)^2= (60)^2+(8)^2

3600+64+2*60*8

=3600+64+960

3600+1024

4624

hope this helps you

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