If α and β are the roots of the equation x2 + x – 1 = 0, the equation whose roots are α^5 and β^5?
p^3 + q^3 + r^3 – 3pqr = 4, If a = q + r, b = r + p and c = p + q, find a^3 + b^3 + c^3 –3abc?
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