Question

If a-b=7 ,a square+b square= 53 then find ab​

Answer 1

Step-by-step explanation:

a-b=7

a^2+b^2=53

ab=?

using identity:-

(a-b)^2=a^2+b^2-2ab

7^2 =53-2ab

49=53-2ab

2ab=53-49

2ab=4

ab=4/2

ab=2