Let and be the roots of the quadratic equation . If and are positive integers satisfying such that the quadratic equation has and as its roots, find the value of .
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With x 2 + x + 1 = 0 , we multiply x − 1 for both sides, and gives x 3 − 1 = 0 . Now, since α 6 2 = ( 1 2 0 ) α 2 , and β 6 2 = ( 1 2 0 ) β 2 , we resolve for α , β , which gives α = 2 − 1 + i 3 ; β = 2 − 1 − i 3 and β 2 = α ; α 2 = β , hence we will come to the same equation, the x 2 + x + 1 = 0 , where the g c d ( 1 , 1 , 1 ) = 1 , but since we require the equation with g c d ( a , b , c ) = 2 2 , we just multiply 22 into the original equation, which gives 2 2 x 2 + 2 2 x + 2 2 = 0 , hence, a + b + c = 2 2 + 2 2 + 2 2 = 6 6