Question

a^2+b^2=20, ab=20 find the value of a+b​

Answer 1

$A^2 + B ^2 = 20 \\\\AB = 20\\\\TO\ FIND = A+B\\\\(A+B)^2 = A^2 + B^2 + 2AB\\\\(A+B)^2 = 20 + 2*20\\\\(A+B)^2 = 20 + 40 \\\\(A+B)^2 = 60\\\\(A+B) = \sqrt{60} \\\\(A+B) = \sqrt{2*2*3*5} = 2\sqrt{15} \\\\HOPE \ IT \ HELPS \ !!$