Question

A-b=2 and ab=15 then a square +b square

Answer 1

Answer:

A=5

b=3 .

Then a²+b²= a²+b²+2ab

=5²+3²+2(5)(3)

=25+9+30

=64

Answer 2

Answer:

a-b=2 ab=15 then a²+b² is

(a-b) ²=a²+b²-2ab

(2)²=a²+b²-2(15)

4=a²+b²-30

a²+b²=34.