Question

a^2+b^2=75 and ab=35 Find (a+b)

Answer 1

Step-by-step explanation:

(a+b)² = a² + 2*a*b + b²

[substitute a²+b² = 75 & a*b=35

(a+b)² = 75 + 2*35 = 75+70 = 145

(a+b) = √145 = 12.04 (approx.)