50pts. & will give brainliest! 3 multiple choices. determine what descartes' rule of signs says about the number of positive real roots and negative real roots for the polynomial function.
P(x) = x^2 + 5x + 6
a. no positive real roots; two or no negative real roots
b. two or no positive real roots; no negative real roots
c. no positive real roots; no negative real roots
d. two positive real roots; no negative real roots
P(x) = 9x^3 - 4x^2 + 10
a. no positive real roots; one negative real root
b. two or no positive real roots; one negative real root
c. two or no positive real roots; no negative real roots
d. one positive real root; no negative real roots
P(x) = 8x^3 + 2x^2 - 14x + 5
a. no positive real roots; one negative real root
b. two or no positive real roots; one negative real root
c. two or no positive real roots; no negative real roots
d. one positive real root; no negative real roots
