Question 947525
P(x) = 2x^4 − 13x^3 + 15x^2 + x − 5
.
(plus and minus) all combinations of factors of:
"coefficient of last term"/"coefficient of first term"
.
5/2 = (1,5)/(1,2)
.
possible factors:
1/1, 1/2, 5/1, 5/2
or
1, 1/2, 5, 5/2
.
answer:
-1, -1/2, -5, -5/2, 1, 1/2, 5, 5/2