radejabarron
radejabarron radejabarron
  • 03-05-2020
  • Mathematics
contestada

The product of a number and 8 less than the number is –15. Find the number. and plz explain

Respuesta :

mysticchacha
mysticchacha mysticchacha
  • 05-05-2020

Answer:

It can be 5 or  3

Step-by-step explanation:

let x = that number

x * (x - 8) = -15

xx  - 8x + 15 = 0

xx -  3x  - 5x + 15 = 0

x(x - 3) - 5(x - 3) = 0

(x - 5)(x - 3) = 0

then x = 5 or  x = 3

Answer Link

Otras preguntas

In which type of long-term memory would you find little albert's memory of being classically conditioned to fear a rat? semantic episodic declarative implicit?
Why are unsaturated fatty acids particularly abundant in the cellular membranes of antarctic fish?
El próximo verano, Alejandro _______ a mochilear a la montaña Cotopaxi. irá
Greek dramas often included women as actors.
Major factors that determine a population's growth rate
What is the answer to 2/7 x 4 4/9
Why did shakespeare include the character of the porter?
after dominic peeled out of the parking lot in his new sports car, Sheralyn said "Im sure nobody will notice him now" What is most likely the authors purpose o
Which of the following best describes the square root property of equality
The length of the base of an isosceles triangle is 15. what is the range of possible lengths l for each leg?