Find the square of 53
this can be found using (a+b)2 = a2 +2ab + b2
this can be found using (a+b)2 = a2 +2ab + b2
a = 5; b = 3
(5+3)
= 25 + 30 + 9 (using formula)
2 8 0 9
Ans = 2809
write 9 as it , the next term 0 as it , now carry the 3 to 5 adding these two digits we get 8 then put 2 as it
now square of 65
using the same formula
a = 6; b = 5
( 6+ 5) = 36 + 60 + 25
3+1 6+6 0+2
4 2 2 5
here 5 is write as it , now carry 2 to 0 (0+2 = 2) write the 2
then carry the 6 to 6 ( 6+6= 12) write 2 along carry 1 to 3 (3+1=4)
got the answer as 4225
sorry i would not explain it with images i will try to get pdf of this explanation with images
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