Eliamckette Eliamckette

05-02-2017
Mathematics

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Find two numbers whose sum is -39 and whose product is 10

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wolf1728 wolf1728

05-02-2017

A) x + y = -39
B) x * y = 10

From A) we see x = -y -39 then we substitute this into B
B) (-y -39) * y = 10
-y^2 -39y = 10
-y^2 -39y -10 = 0

y = -38.742
x = -.258

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