The sum of two numbers is 12 and their product is 35.What are the two numbers
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let two numbers be x and y
x + y = 12 ......1
xy = 35
x = 35/y putting this in 1
35/y + y = 12
35 + y² = 12y
y² + 12y + 35 = 0
y² + 7y + 5y + 35 = 0
y( y + 7 ) + 5( y + 7) = 0
y = -5 , -7
x = 17 , 19
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