robcancho robcancho
  • 02-08-2017
  • Mathematics
contestada

Twenty times the square of a non-zero number is equal to 15 times the number

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dhardra
dhardra dhardra
  • 02-08-2017
i think that the answer is 5

Answer Link
choixongdong
choixongdong choixongdong
  • 02-08-2017
20x^2 = 15x
20x^2 - 15x = 0
5x(4x - 3) = 0 
5x = 0, x =0
4x -3 = 0, x = 3/4

answer
non-zero number is 3/4
Answer Link

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