Question

Find All Real Solutions:

2X^4+3Y^3-16Y^2+15Y-4

Answer 1

should that be a "Y^4" ?

Answer 2

yes oops

Answer 3

I have the answer i just need to know how.

Answer 4

if you see the attach i don't see why use 1 for syntactic division.

Answer 5

its the rational zero theorem ....if there any rational zeros, then they must be factors of leading coefficient and constant

--> 4,2,1,1/2,1/4

then you try those using synthetic division, if you get remainder of 0, then its a solution

Answer 6

so i need to try all possible solutions?

Answer 7

yes, well until you find one that works....the trend is to start will smaller values first since they will be more likely

Answer 8

yes...these can be a pain, if you can , use a graphing calculator and graph the function to see where the zeros are
then just verify with synthetic division

Answer 9

ok thanks