The sum of the two numbers is 7,and the product is -60,
what are the numbers please give me a correct answer......
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Let the numbers be x and y respectively
According to the question:-
x + y = 7...........(1)
xy = -60...........(2)
From equation (1)
x = 7 - y
Put the value of x in (2)
(7 - y)y = -60
7y - y² = -60
y² - 7y - 60 = 0
y² -12y + 5y - 60 = 0
y(y - 12) + 5(y - 12) = 0
(y - 12) (y + 5) = 0
y - 12 = 0
y = 12
y + 5 = 0
y = -5
Put the value of y in 1 , we get
When y=12
x + y = 7
x = 7-12
x = -5
When y = -5
x - 5 = 7
x = 12
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