The solution set where the square of x minus 4x minus 5 is greater than 0 is

The solution set where the square of x minus 4x minus 5 is greater than 0 is

x> 5 or X

F (x) = 3x third power - 13X second power - 11x + 5 {first factor test} urgent solution

=3x^2-15x^2+2x^2-10x-x+5
=(x-5)(3x^2+2x-1)
=(x-5)(x+1)(3x-1)

Given that x is greater than 2, compare the cubic power of x plus 11x with the cubic power of 6x plus 6

(X & sup3; + 11x) - (6x & sup2; + 6) = x & sup3; - 6x & sup2; + 11x-6 = (X & sup3; - 1) - 6x & sup2; + 11x-5 = (x-1) (X & sup2; + X + 1) - (6x-5) (x-1) = (x-1) (X & sup2; - 5x + 6) = (x-1) (X-2) (x-3) x > 0, then (x-1) > 0, X-2 > 0