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Nadusha1986 [10]
3 years ago
6

The sum of two numbers is 25. their product is 154

Mathematics
2 answers:
kolbaska11 [484]3 years ago
7 0
The two numbers are 14 and 11
kow [346]3 years ago
7 0
Let those numbers be a and b

a+b = 25 -----(i)
ab = 154 -----(ii)

from (ii)
a = 154/b

by substituting for "a" in (i)

a + b = 25
(154/b) + b = 25
( 154 + b^2)/b = 25
154 + b^2 = 25b
154 + b^2 -25b =0

now, arrange the terms

b^2 - 25b + 154 = 0
b^2 - 14b - 11b + 154 =0
b (b-14) -11 (b-14) =0
(b-11)(b-14)= 0


now find the value for b

b -11 =0
b = 11
and

b-14=0
b = 14


b equals either 14 or 11

and a = 154/b
if b = 11 then, a = 154/11 = 14
if b = 14 then, a = 154/14 = 11


so, the value of a and b are 11 and 14.

so, those numbers are 11 and 14.
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