algebra precalculus - Solve the equation $x^4-2x^3-21x^2+22x+40=0$ whose roots are in A.P. - Mathematics Stack Exchange
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Solve the equation $x^4-2x^3-21x^2+22x+40=0$ whose roots are in A.P. (arithmetic progression). I don't understand this solution. Why are the terms of AP considered as mentioned in the question and
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Solve the equation whose roots are in A.P., Theory of Equations
10. Solve x4−2x3−21x2+22x+40=0, whose roots are in arithmetical progressi..
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What are the roots of x ⁴ + 2 x ³ - 21 x²- 22x + 40 = 0? - Quora
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32. Two roots of the equation ( x ^ { 4 } - 6 x ^ { 3 } + 18 x ^ { 2 } - 30 x + 25 = 0 ) are of the form ( alpha + i beta ) and ( beta + i alpha . ) Find all the roots of the equation.
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given that alpha and beta are the roots of the equation x2=7x+4 Show that alpha3=53alpha+28
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find the roots of equation x^4+2x^3-21x^2-22x+40=0 if they are in a.p.
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Inter 2nd Year Maths 2A Theory of Equations Important Questions – AP Board Solutions