jordtravs jordtravs
  • 25-01-2017
  • Mathematics
contestada

What two numbers multiply to -320 and add to 32

Respuesta :

surjithayer surjithayer
  • 25-01-2017
let a and b be the numbers,then a+b=32,b=32-a
ab=-320
a(32-a)=-320
32a-a^2=-320
a^2-32a-320=0
a^2-40a+8a-320=0
a(a-40)+8(a-40)=0
(a-40)(a+8)=0
a=40 or-8
when a=40,b=32-40=-8
when a=-8,b=32-(-8)=32+8=40
so numbers are 40 and -8
Answer Link

Otras preguntas

Two ants, Andy and Ashley, went to visit their friend. Andy crawled the whole way, but Ashley spent half of the way riding on a caterpillar, which was two times
list 4 developmental achievement of sir fredrick Guggisberg
Water polarity. Which is the correct answer?
What is the best definition of culture? O A. The religious prayers, songs, and dances characteristic of a specific group of people B. The bqliefs, behaviors, va
I need help with this question
Genevieve makes sure that she walks by her boss's office several times a day and tries to greet and make eye contact with her. She is trying to increase her:
Explain why eating a meal with too much salt leads to production of small volume of concentrated urine. ​
y=2x-7 what is x and y
Do Juvenile Killers Deserve Life Behind Bars? What is the author's purpose in writing this article?
which term of the AP:3,15,27, 39,.....will be 132 more than its 54th term​