sum of two numbers are 14 and their product is 45 find the numbers
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Answer:
5 and 9
Step-by-step explanation:
let the numbers be x and y
x + y = 14
x = 14 - y ---- 1
and
xy = 45
from 1
(14 - y)y = 45
14y - y² = 45
y² - 14y + 45 = 0
y² - 9y - 5y + 45 = 0
y(y-9) -5(y-9)=0
y=9 or y=5
x = 14-y = 14 - 9 = 5
x = 14-y = 14 - 5 = 9
∴ the two numbers are 5 and 9
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