Question

if a square + b square is equal to 41 and a b is equal to 4 find the value of a plus b
, ​

Answer 1

Step-by-step explanation:

a²+b²=41

ab = 4

then,

(a+b)²=a²+b²+2ab

(a+b)² = 41+2×4

(a+b)² = 41+8

(a+b)² = 49

a+b = √49

a+b = 7

Answer is 7