lilyedgar06 lilyedgar06

03-08-2021
Mathematics

contestada

Find a and b such that ab = 15
and a+b = -8.

Respuesta :

doomdabomb doomdabomb

03-08-2021

Answer:

a = -3 or -5 and b = -5 or -3

Step-by-step explanation:

a + b = -8

ab = 15

b = 15/a

b = 15/(-3)

b = -5

a(-5) = 15

(-5)a = 15

(-5)/5 = 15/-5

a = -3

a + b = -8

-3 - 5 = -8

-8 = -8

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