Find the number of roots of `x^3 + 4x - 40 = 0`

Find the number of positive real roots of x^4-4x-1=0

Find the other root of x^(2) - 4x + 1 = 0 given that 2 + sqrt3 is a root:

Find the number of positive real roots of x^(4)-4x-1=0

Find the roots of x^2+3x-4=0 is

If the roots of x^4 +5x^3 - 30 x^2 - 40 x+64=0 are in G.P then roots of x^4 - 5 x^3 - 30 x^2 + 40 x+ 64 =0 are in

If the roots of x^4 +5x^3 - 30 x^2 - 40 x+64=0 are in G.P then roots of x^4 - 5 x^3 - 30 x^2 + 40 x+ 64 =0 are in

find the multiple roots of 12x^3 +40x^2 +39 x + 9=0

If the two roots of 4x^3 + 20 x^2 -23x + 6=0 are equal then find all the roots .

If the two roots of 4x^3 + 20 x^2 -23x + 6=0 are equal then find all the roots .

Find number of real roots of equation e^(4x) + e^(3x) - 4e^(2x) + e^(x) + 1 = 0 is