Two numbers that multiply to minus 48 and add up to 13?

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02-10-2016
Mathematics

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Two numbers that multiply to minus 48 and add up to 13?

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texaschic101 texaschic101 · Answer 1 · 2016-10-02T20:50:26+02:00

texaschic101 texaschic101

02-10-2016

a * b = -48
a + b = 13.....a = 13 - b

b(13 - b) = -48
-b^2 + 13b = -48
-b^2 + 13b + 48 = 0
(-b-3)(b - 16) = 0

-b - 3 = 0
-3 = b

b - 16 = 0
b = 16

ur numbers are : 16 and -3

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