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bos1234 said:If one root of the eqn x^3 - bx^2 + cx - d = 0 is equal to the product of the other two, show that (c+d)^2 = d(b+1)^2
Let the roots be a,B,aB
a+B + aB = b
aB+ a^2.B + aB^2 = c
a^2B^2 = d