find the roots of equation x^4+2x^3-21x^2-22x+40=0 if they are in a.p.​

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Solve the equation whose roots are in A.P., Theory of Equations

Looking at x^4-2x^3-21x^2+22x+40, why are the roots of the given equation (a -3D,a-b,a+b, a+3D)? How can I guess this? - Quora

If the roots of ( x ^ { 2 } + p x + 40 = 0 )naro in the ratio ( 2 : 5 ) , thennfind the value of ( p ) .n( x ^ { 2 } + b x + 40 = 0 )

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solve the equation x^4-2x^3-21x^2+22x+40=0 whose roots are in arithmetical progression ​

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Telugu] If x^(4) + 4x^(3) - 2x^(2) - 12x + 9 = 0 has a pair of equal

Answered: Use the given information to find the…

Telugu] If two of the roots of 8x^(4) - 2x^(3) - 27x^(2) + 6x + 9 = 0

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