Which of the following is the complete list of roots for the polynomial function f (x) = (x squared + 2 x minus 15) (x squared + 8 x + 17)?

x = -5, 3, -4 - i, -4 + i.

Step-by-step explanation:

(x^2 + 2x - 15)(x^2 + 8x + 17) = 0

(x^2 + 2x - 15) = 0

(x + 5)(x - 3) = 0

x = -5, 3.

x^2 + 8x + 17 = 0

Completing the square:

(x + 4)^2 - 16 = -17

(x + 4)^2 = -1

x + 4 = +/- i

x = -4 + i , -4 - i.

the answer is d. (1.2, -4.7) on edgn

hope this !

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%