19 + x^3.
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19 x 19 x 19 = 6859
Twice divided by the cube of the sum of x and 2 is equal to 2 times the reciprocal of ((x + 2) cubed)).
it will be a cube or a to the power of 3.
x2 + x = 380 x2 + x - 380 = 0 (x + 20)(x - 19) x = 19, -20
19