Why is the square of two numbers equal to the sum of two numbers Why is the square of six minus the square of five equal to five plus six?

It's not the sum of two numbers, it's the sum
(n+1)^2-n^2
={n^2+2n+1}-n^2
=2n+1
When n = 5
6^2-5^2
=2*5+1
=11
It's not 6 + 5

RELATED INFORMATIONS

1. Which two perfect squares add up to 25 out of 81
2. The sum of the squares of two numbers is equal to one number. Can we solve it by square root of two numbers
3. How to add the squares? The quadratic power of x plus the quadratic power of X. and the square of constant and unknown How about the quadratic power of 9x + 4x
4. What is the sum of the square numbers of 1 in 1998? It's 11111111 ×1111111…… Not 1 × 1 + 1 × 1 + 1 × 1
5. 13 is made up of the sum of the squares of which two numbers?
6. What is the sum of even numbers within 100? Formula?
7. What is the square formula of adding three numbers in brackets? How to open it
8. Three times the square of what number equals seven times that number?
9. Given that the square of a number is equal to three times the number, then the number is zero______ ．
10. Is the square of 3 equal to 9? Is there any other number whose square equals 9?
11. What is the square of (2x + Y-1) (2x-y-1) =? And (3x + y-5a)
12. Calculation of 2x + Y / 4x square - 4xy + y square / (4x square - y Square) - necessary process
13. First simplify, then evaluate: (a + 2) (A-2) + 2 (the square of a + 3), where a = 1 / 3. Given a = 2x + y, B = 2x-y, calculate the square of a-b
14. Given a = 2x + y, B = 2x-y, calculate A2-B2
15. Calculate the square of (a + B + C), and use its conclusion to calculate the square of (2x - y + 3Z)
16. Given a = 2x + y, B = 2x-y, calculate A2-B2
17. Calculate: (the square of x-2x + 1-y) divided by (x + Y-1)
18. A = 2x-y, B = x + y, calculation: a square - 2Ab Multiplication formula
19. : (x + y) (x + y) ^ - (x + y) (2x + y) ^ calculated by complete square
20. Calculate the square of (X-Y) - 2x (X-Y)