Which of the following is the output of 495 * 495 - 105 * 105?
Answer & explanation
Correct answer: option 1
We can also write the above expression as follows:
(500 - 5)2 - (100 + 5)2
(5002 + 52 - 2 x 500 x 5 ) - (1002 + 52 + 2 x 100 x 5)
(250000 + 25 - 5000) - (10000 + 25 + 1000)
245025 - 11025
234000