jacobblack4452 jacobblack4452
  • 23-12-2017
  • Mathematics
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Find three consecutive odd integers such that 5 times the sum of all three is 42 more than the product of the first and second integers

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lesliekolleroxrkcf
lesliekolleroxrkcf lesliekolleroxrkcf
  • 28-12-2017
the three integers are x, x+2, x+4

5(3x+6)=42+x(x+2)
15x+30=x^2+2x+42
x^2 - 13x +12=0
(x-12)(x-1) = 0
x = 12 or 1
since the integers have to be odd we exclude 12

integers are 1,3,5
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