teeba68
teeba68 teeba68
  • 13-02-2020
  • Mathematics
contestada

The product of 2 numbers is +15 and their difference is -8. What are the 2 numbers?​

Respuesta :

melkemk503
melkemk503 melkemk503
  • 13-02-2020

Answer:

if the number are x and y

then

xy=15. *1

x-y=-8. *2

x=y-8. *3

by *1&3

y(y-8)=15

[tex] {y}^{2} - 8y = 15 \\ {y}^{2} - 8y - 15 = 0 \\ by \: quadratic \: equation \: formula \: it \: becomes \: 9.6or - 1.56[/tex]

x-y=-8

x=-9.56or. x=1.56

if y =-1.56 x equals -9.56and if

if y =-1.56 x equals -9.56and if if y=9.56. x equals 1.56

Answer Link

Otras preguntas

how to find xxx in the equation P3=N1S
There are as many reasons to like a character as there are characters. A combination of elements work together to make a character . Writers also use different
Can you answer this please
Are points D, H, and C collinear or noncollinear?
Frequency- Different sounds move at different speeds. The number of times something Blank each second, is measured in Hertz.
MOVIES In how many different ways can ir friends sit in a row of four seats at the movies if two of the friends insist on sitting next to each other?
Write an essay stating your position on whether it is better to be alone when thinking on a difficult task.
Which one is right???
3x^2-5x-7 find the sum and product​
A genetic mutation will most immediately affect which of the following?