Question

1 998•1 999-1 998²-1 993=... Решите по действиям, please!!!

Answer 1

1) 1 998•1999=3 994 002
2) 1 998•1 998=3 992 004
3) 3 994 002 - 3 992 004= 1 998
4) 1 998 - 1 993 = 5

Answer 2

=1998(1999-1998)-1993=1998-1993=5

Answer 3

To solve the given expression, let's break it down step by step:

1. Start with the first term: 1 + 998. - The sum of 1 and 998 is 999.

2. Move on to the second term: 999 - 1. - The difference between 999 and 1 is 998.

3. Next, consider the third term: 998². - The square of 998 is 996,004.

4. Now, let's look at the fourth term: 1,993. - There is no operation involved with this term, so we can simply keep it as 1,993.

5. Finally, add up all the terms: - 999 + 998 - 996,004 + 1,993 = 4,990.

Therefore, the value of the expression 1 + 998•1 + 999 - 1 + 998² - 1 + 993 is 4,990.

Please let me know if you have any further questions!