Question

A2+b2=39 y ab=5 ,halle a+b(a y b)

Answer 1

a2+b2=39

ab=5

2a+b=39/2

2a=39/2-b

39/2-b+2b=39

39-2b/2+2b=39

39-2b+4b=78

2b=78-39

2b=39

b=39/2

ab=5

a(39/2)=5

39a=10

a=10/39

Hallar a+b

10/39+39/2

20+1521/78

1541/78