Question

ab=5 and a2+b2=25 then find (a+b)2 ​

Answer 1

it is given that

ab=5 and a^2+b^2=25

then we have to do

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

therefore ; we put the given values of a2+b2=25and ab=5

then (a+b)^2=25+2×5

=35