ashleymeza156 ashleymeza156
  • 17-04-2022
  • Mathematics
contestada

Find two consecutive positive integers such that the sum of their squares is 761

Respuesta :

Аноним Аноним
  • 17-04-2022

Answer:

[tex]19^{2} +20^{2}[/tex] is 761

Step-by-step explanation:

Answer Link
Аноним Аноним
  • 17-04-2022

Answer:

19 and 20

Step-by-step explanation:

Let the integers be x and x + 1.

According to the question,

  • x² + (x + 1)² = 761
  • x² + x² + 2x + 1 = 761
  • 2x² + 2x - 760 = 0
  • x² + x - 380 = 0
  • x² + 20x - 19x - 380 = 0
  • x(x + 20) - 19(x + 20) = 0
  • (x - 19)(x + 20) = 0
  • x = 19, -20
  • But x is a positive integer
  • ⇒ x = 19

Therefore, the integers are :

  • x = 19
  • x + 1 = 20
Answer Link

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