P.o.t.W. #25
■ No GDC ■ for HL students Given \(a + b = 1 and \({a^4} + {b^4} = 7 for \(a,b \in \mathbb{R} , find the value of \({a^2} + {b^2} and the value of \({a^3} + {b^3} . Hint: Begin by letting \(P = {a^2} + {b^2} and \(Q = ab , and solve for \(P and \(Q . PDF: P.o.t.W. #25