phanshipper135
phanshipper135 phanshipper135
  • 21-03-2017
  • Mathematics
contestada

What two numbers multiply to 24 and add to 13?

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wolf1728
wolf1728 wolf1728
  • 22-03-2017
A) x * y = 24
B) x + y = 13

A) y = 24 / x   Substituting this into B)
B) x + 24 / x = 13
B) x^2 + 24 = 13x
B) x^2 -13x + 24 = 0
x = 10.772
y = 2.228

(Gee, usually these problems have integers for answers.)


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