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Anestetic [448]
3 years ago
15

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

Mathematics
1 answer:
Alecsey [184]3 years ago
7 0

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

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