Question

look at this pattern
1 * 5 = 3square - 4
2 * 6 = 4square - 4
3 * 7 = 5square - 4
explain the general principal you arrived using algebra​

Answer 1

let n be any natural number

n(n-4)=(n-2)^2 -4

Answer 2

Answer:

a × (a+4) = (a+2)^2 - 4

Step-by-step explanation:

here you need not to solve (a+2)^2 by the (a+b)^2 identity it's in reference to a