Question

to proved 8ab(a^2+b^2) =624 when (a+b)=5 & (a-b)=1

Answer 1

a+b = 5
a-b =1

then a= 3
and b= 2
put in equation
then 8×3×2 (9+4)
48×13= 624.........hence proved hope it helps plz mark my answer brainlist ans.