Mathematics
mattatinio
23

Eight times the square of a positive integer divided by two equals 144 minus 36 times the positive integer. Find the unknown positive integer.

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(1) Answers
cupcake2d

The correct answer for the question that is being presented above is this one: "The unknown positive integers are 3 and -12." Eight times the square of a positive integer divided by two equals 144 minus 36 times the positive integer.  8 * x^2 / 2 = 144 - 36x 4*x^2 = 144 - 36 x x^2 = 36 - 9x x^2 + 9x - 36 = 0 (x - 3) (x + 12) = 0 x - 3 = 0 x = 3 x + 12 = 0 x = -12

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