selmaachiburi
selmaachiburi selmaachiburi
  • 20-05-2014
  • Mathematics
Answered

find two consecutive numbers with a product of 121



Answer :

Ryan2
Ryan2 Ryan2
  • 14-07-2014
One number: x
Its consecutive:  x + 1

Product:

x(x+1)=121
x² + x - 121 = 0

Δ = 1² - 4.1.(-121)
Δ = 1+484
Δ = 485

As square root of 485 is not integer, do not exist two consecutive numbers with product of 121
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