Respuesta :
81x2 as (9x)2.(9x)2−49
Make 49 as 72.(9x)2−72
a2−b2=(a+b)(a−b)
when a=9x and b=7.(9x+7)(9x−7)
Make 49 as 72.(9x)2−72
a2−b2=(a+b)(a−b)
when a=9x and b=7.(9x+7)(9x−7)
Answer: (Like pretty much all of my other answers, this is late, but for anyone else that needs it.)
The value of a is 9x
The value of b is 7
The product of the prime factors is (9x-7)(9x+7)