Question

if ab = 4 , and a^2 + b^2 = 17 , find a+b

Answer 1

Answer:

5

Step-by-step explanation:

ab=4

4(1)=4

4=4

a2+b2=17

4^2+1^2=17

16+1=17

17=17

a=4 b=1

4+1 = 5

a+b=5