Asked by Jass

Find the discriminant for the quadratic equation f(x) = 5x^2 - 2x + 7 and describe the nature of the roots.

discriminant is 144, one real root
discriminant is -136, two complex roots <--?
discriminant is -136, one complex root
discriminant is 144, two real roots


If a binomial, x - a, divides a polynomial, what must be true in order for x - a to be a factor of the polynomial?

The remainder has to be 0.
The polynomial must be degree 3.
It must divide the polynomial in half. <-- ?
There cannot be any other factor x = a.

Answers

Answered by Scott
one out of two

if something goes into something else "evenly" (wholly), then ...
Answered by Jass
Which one is correct and huh? sorry I'm lost
Answered by Scott
1st one is correct


the division hint is for the 2nd
Answered by Jass
Thanks! :)
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