What's the meaning of brackets to the fourth power of negative 2 and to the fourth power of no negative 2?

They have different meanings and different results

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1. What is the fourth power of 1 without brackets
2. Wang Liang and Li Jun are playing a game. In advance, they prepare a card with the following four numbers: bracket 1 / 3 to the 30th power, bracket 3 to the 30th power, bracket 1 / 2 to the 30th power They put the card into a sealed box. The rules of the game are: two people take turns to take the card, and calculate the product of the two numbers they get. It is stipulated that whoever gets the big result wins. Wang Liang draws two numbers: the 30th power of one third bracket and the 30th power of three. Li Jun draws two numbers: the 40th power of two and the 40th power of two, At this time, they all think they have won. Please be the referee. Who do you think they have won, and explain the reason
3. The nth power of x = 5, the nth power of y = 3, find the 3N power of X bracket of Y part
4. What is the largest integer not exceeding (minus five-thirds) to the third power?
5. What's the difference between the power with brackets and the power without brackets It's almost to the second power of (- 3) and the second power of - 3 Are these two the same? How to write the right number? You'd better tell me what to write, -Is the second power of (- 3) - 9? Because 3 × 3 equals 9, and then the two negative signs are positive, but they become negative again because of the brackets?
6. The difference between the power without brackets and the power with brackets, such as the difference between the second power of - 2 / 5 and the second power of (- 2 / 5), just tell me how to calculate the first one
7. Q: the third power of a + B brackets =?
8. Is the square of bracket (a-b) to the second power X (a-b to the third power) - (B-A) to the fifth power?
9. To calculate the cubic power of 2 * [(- 3) * 4 / 2], we should first calculate (), then calculate (). When calculating the formula in brackets, we should first calculate (), then calculate (), the most The third power of 2 * [(- 3) * 4 / 2] should be calculated first (), then (). The formula in brackets should be calculated first (), then (), and finally (). (fill in the blanks)
10. Write an expression whose result is A6______ ．
11. A minus the - 1 power of a is equal to 3. To find the fourth power of a plus the negative fourth power of a, we can't find the power, so we have to use language
12. The quadratic power of (a-b) multiplied by the nth power of (a-b) multiplied by the quintic power of (B-A)
13. Bracket minus one third bracket square divided by bracket minus one third bracket cube multiplied by bracket minus one third bracket cube divided by 3 minus 2 times bracket minus 3 It's a process
14. A, B and C are three rational numbers which are not equal to zero. The product is negative and the sum is positive. Find the value of a | a | + B | B | + C | C | Sorry, it's a semicolon,
15. A simple algorithm of 2 * 3 / 1 + 3 * 4 / 1 +... + 2009 * 2010 / 1
16. Is the result of the following formula odd or even? 1+2+3+4+… +2009+2010．
17. Is the result of 2010-2009 + 2008-2007 +... + 2-1 odd or even
18. 1+2+3+…… +Is the sum of 2008 + 2009 + 2010 odd or even?
19. Is the sum of 1 + 2 + 3... + 2010 + 2011 + 2012 odd or even
20. 1+2+3+… +The result of 2010 + 2011 is odd______ ．