Question

A^2 - B^2 =9×11 find the value of A and B?

Answer 1

Answer:

a = 10

b = ±1

Step-by-step explanation:

a² - b²  = 9 * 11

(a+b)*(a-b)  = 9*11

case 1 :   a+b = 9  then a-b=11

adding both 2a = 20 means a =10  and b = -1

Case 2    a+b = 11 * a-b =9

adding both 2a = 20 so a = 10 and b = 1

so  a= 10   & b = ±1