Use a quadratic equation to find two real numbers that satisfies the situation. The sum of the two numbers is 7 and their product is 14.

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asked Aug 21, 2018 170k views

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Jim Buck · Answer 1 · 2018-08-24T16:03:40+0000

A) x + y = 7
B) x * y = 14

y = 7 -x
Inserting this into B)
B) x * (7-x) = 14
7x -x^2 = 14

-x^2 + 7x - 14 =0
Can't find the solution
Perhaps it should read the sum = 9?
Then x = 2 and y = 7

Use a quadratic equation to find two real numbers that satisfies the situation. The sum of the two numbers is 7 and their product is 14.

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