Answer:
52=2.5,and,2
Explanation:
Suppose that xandy are the reqd. nos.
Then, by what is given, we have,
(1):x+y=4.5=92,and,(2):xy=5.
From (1),y=92−x.
Subst.ing this y in (2), we have, x(92−x)=5,or,
x(9−2x)=10,i.e.,2x2−9x+10=0.
∴2x2−5x−−−−−−−−−4x+10−−−−−−−=0.
∴x(2x−5)−2(2x−5)=0.
∴(2x−5)(x−2