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Which TWO problems will result in a product of 4.5?
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User IndieBoy
by
7.7k points

2 Answers

3 votes

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

User EricMorentin
by
8.9k points
3 votes

Answer:4.5

Explanation:

39929292902902

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