The discriminant of 0 = a + bx +cx^5, c is not equal to 0, is c?State true or false?Give reason?
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Yes, but you wrote 0 = a + bx +cx^5, which is rather 0=a+bx+cx^3 isn't it ?
The discriminant of $\displaystyle mx^3+nx^2+px+q=0$ is $\displaystyle n^2p^2-4mp^3-4n^3q-27m^2q^2+18mnpq$
Here, m=c, n=0, p=b and q=a.
Thus the discriminant is :
$\displaystyle -4cb^3-27c^2a^2$
$\displaystyle =c(-4b^3-27ca^2)$
But I don't quite understand your question...