00:01
Let's list all the possible rational zeros for this function, which is 2x to the 5th, plus 8x cubed, plus 4x squared minus 10.
00:10
They don't want us to find the actual zeros, just list the possibilities.
00:14
So what we need to look at are the factors of 2 and the factors of negative 10.
00:19
Factors of 2 are 1 and 2, and we put plus or minus there.
00:23
For 1 and 10, we're looking at 1 in 10, 2, and 5.
00:26
So your possible rational 0 is going to be the factors of 2.
00:30
Of 10, now we'll put our plus or minus in there over the factors of two...