5.
g(x) is a quintic polynomial that can be expressed in the form:
g(x) = (2x + 1)5 - (x + k)¹.
The coefficient of the quadratic term of g(x) is -14
Determine the possible values of k.
I’ve found the x^2 value for the (2x+5)^5 and am stuck on trying to find the x^2 coefficient of the second bracket because it’s negative and 4C2 and I cant square root a negative number :/
