lilyedgar06 lilyedgar06
  • 03-08-2021
  • Mathematics
contestada

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

Respuesta :

doomdabomb
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
Answer Link

Otras preguntas

Choose the right variant 1 This book will take to years to write. A. After two years I'll write this book B. In two years time I'll have written this book C . A
let f(x)=2x-6. solve f^-1(x) when x=2.
let f(x)=x^2 - 16. find f^-1(x).
7.25 times 8 1/2= what?
what is the GCF of 12x and 44xy
3x+4y=17 solve for y.
What are some key words to use in writing and evaluation?
the difference of two numbers is 11 and their product is 42.find these numbers.
Helen Grey By Christina Georgina Rossetti Because one loves you, Helen Grey, Is that a reason you should pout, And like a March wind veer about, And frown, and
If a store credit account charges 1.5% interest each month, what is the APR?