Asked by prethy
Determine the sum of the digits of
1) 777 777 777 777^2 - 222 222 222 223^2
1) 777 777 777 777^2 - 222 222 222 223^2
Answers
Answered by
MathMate
Factorize the difference of two squares:
777 777 777 777^2 - 222 222 222 223^2
=(777777777777+222222222223)*(777777777777-222222222223)
=1000000000000*555555555554
=555555555554000000000000
The sum of the digits
= 12*5-1
=59
777 777 777 777^2 - 222 222 222 223^2
=(777777777777+222222222223)*(777777777777-222222222223)
=1000000000000*555555555554
=555555555554000000000000
The sum of the digits
= 12*5-1
=59
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.