Question

If (a + b) = 73 and a b =65 find value of a²+ b²​

Answer 1

Explanation:

Here,

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

so,

or,(a+b)^2-2ab

or,(73)^2-2×65

or,5329-126

=5203 is the answer