If the square of a-Ab = 9 and the square of ab-b = 4, then the square of A-B =?, the square of a-2ab + B =? It is helpful for the responder to give an accurate answer

Square of a - square of B = 13
Square of a-2ab + square of B = 5

RELATED INFORMATIONS

1. Square of a + square of B = 20, a + B = 6, find the value of ab
2. A four digit integer, plus 400, becomes the complete square of a natural number. How many such four digit numbers are there?
3. A four digit positive number, plus 400, becomes the complete square of a natural number. How many such four digits are there? Explain with formula
4. A four digit positive number, plus 400, becomes the complete square of a natural number. How many such four digit numbers are there?
5. A four digit number is a complete square number, and the first two digits are equal, and the last two digits are equal? Please answer in detail, and tell me what is a complete square?
6. If a is a four digit number and the sum of a and 400 is a complete square number, how many such numbers are there Question 2: what is the smallest positive integer x that makes 1260 x = n ^ 2 hold? Thank you. These two problems have bothered me for a long time. Thank you for helping me solve them
7. Use 1, 2, 3 to make the largest number (I learned Square)
8. Seek the law of the square of the number! Give 50 points for a good answer, and I guarantee it with credit! By the way, the so-called rules I want to follow are: The square of 1 is 1, the square of 2 is 4, the square of 3 is 9, the square of 4 is 16, the square of 5 is 25, the square of 6 is 36 Is there any rule for such a square? I now learn Pythagorean theorem, always square, a waste of time, and trouble There's no law. Good calculation method is OK By the way, what I want is not the complete square formula, nor the square difference formula!
9. The number of times of a single non-zero number is 0, but I can't figure it out. Doesn't it mean that the zero power of any number is one
10. Square of (me) + square of (love) + square of (number) + square of (learning) = 95, how many are the four numbers that I love mathematics?
11. If the square of a-Ab = 9 and the square of ab-b = 4, then what is the square of A-B? What is the square of a + 2Ab + B
12. (a + B of a-b - A-B of a + b) divided by (1 - a square - 2Ab + B of a square + b square)
13. Let a be greater than B and greater than 0, and the square of a + the bungalow of b-6ab is equal to 0, then the value of a + B of A-B is obtained Square of a + square of B = 6ab, sharp,
14. Let a > 0b > 0, a square + b square - 6ab = 0, then a + B of B-A is equal to 0
15. Let a > b > 0, a square + b square + 6 AB equal to 0, then the value of B-A on a + B ratio is equal to 0
16. Let a > b > 0, A2 + b2-6ab = 0, then the value of a + BB − A is equal to 0______ ．
17. How many square meters is 210 square decimeters equal to? How many square centimeters is 210 square decimeters equal to
18. The square of a few is 500
19. How many square meters is 500 mu
20. How many hectares is 500 square meters