X^3-1/X+2
This says X to the power of 3, subtract 1, divided by, X plus 2.
Thanks I coudn't even start this question because all the other question had three or more top numbers like X^3+2X^2-13X+10.
I need this help.
Thanks for the help....
X^3-1/X+2
This says X to the power of 3, subtract 1, divided by, X plus 2.
Thanks I coudn't even start this question because all the other question had three or more top numbers like X^3+2X^2-13X+10.
I need this help.
Thanks for the help....
Hi
Well are you trying to solve for X when that equation is equal to ZERO?
e.g. ((X^3)-1)/(X+2) = 0
If so then all you need to do is solve for (X^3)-1 = 0, because if the top line is zero then the whole fraction is zero.
Therefore solving that equation will give an answer of X=1.
Also there are two more solutions (it is a cubic).In order to get those you need to do long division on (X^3)-1 with (X-1), which will then give an equation of ((X^2)-X+1). And when you solve this for zero you will get two complex roots 0.5+0.86i and 0.5-0.86i
Hope this helps
If this is a question about how to do polynomial division, you should think of the numerator as being $\displaystyle x^3 + 0x^2 + 0x - 1$. Then it will have "three or more top numbers" (even though some of them are zero), and you can divide it by x+2 in just the same way as you would if it was something like "$\displaystyle X^3+2X^2-13X+10$".