What rules do you find by observing the formula? Please use the algebraic formula 5*5=25,8*8=64,12*12=144,25*25=625 4*6=24,7*9=63,11*13=143,24*26=624

What rules do you find by observing the formula? Please use the algebraic formula 5*5=25,8*8=64,12*12=144,25*25=625 4*6=24,7*9=63,11*13=143,24*26=624

n *n = n^2
(n-1)(n+1) = n^2 -1
That's the rule
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Observe the formula and find the law expressed by algebraic formula
3²-1=8=8×1
5²-3²=16=8X2
7²-5²=24=8X3
9²-7²32=8X4
11²-9²=40=5X8

N ^ 2 - (n-2) ^ 2 = (n * 4-4) can only think of here, the rest depends on LZ

Observe the following formula and express the rule with the algebraic formula containing n (Master, please hurry)
Observe the following formula:
1 square + (1 * 2) + 2 square = 9 = 3 square
2 square + (2 * 3) + 3 square = 49 = 7 square
3 square + (3 * 4) + 4 square = 169 = 13 square
4 square + (4 * 5) + 5 square = 441 = 21 square

n^2 + n*(n+1) + (n+1)^2 = (n*(n+1)+1)^2