kim0923 kim0923
  • 02-12-2020
  • Mathematics
contestada

La suma de un número natural y su cuadrado es de 72. Encuentra el número del que se trata.

Respuesta :

Adetunmbiadekunle Adetunmbiadekunle
  • 09-12-2020

Answer:

8

Step-by-step explanation:

Sea el número x El cuadrado será x ^ 2

Entonces la suma será; x ^ 2 + x = 72 x ^ 2 + x-72 = 0

x ^ 2 + 9x-8x-72 = 0

x (x + 9) -8 (x + 9) = 0

(x + 9) (x-8) x = 8 o -9

Como solo estamos considerando números naturales, la respuesta correcta es 8

Answer Link

Otras preguntas

A flight instructor charges $50 per lesson, plus an additional fee for the use of his plane. The charge for the use of the plane varies directly with the square
least number that has 2, 3, 4, as factors
What were some events/things that caused the Great Depression?
which explorer sailed for france?
Why does Louis XIV want to expand France's border?
Please I have the answers I just want to double check them and Solvekey: B=42  A=93  N=29  X=361. (b-7)(2b-7)2. (4a-4)(5a-7)3. (5n-6)(4n+7)4. (2n=8)(8n+3)5. (6x
What are abiotic factors of the enviroment lynx
USE A NUMBER LINE TO FIND 8/9 / 8/45.
Which of the allies suffered the greatest losses on D-Day
what is the kingdom and phylum of a euglena protest?