kelseyshreves kelseyshreves

20-02-2017
Mathematics

contestada

What two numbers multiplied equal 24 and when added equal -4

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wolf1728 wolf1728

22-02-2017

A) x * y = 24
B) x + y = -4
A) x = 24/y
Substitute this into B)
B) 24/y + y = -4
multiplying each side by y
B) 24 + y^2 = -4y
y^2 + 4y + 24 = 0

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