[llink13]

x to the second power -5x + 4

Factor completely, if the polynomial is non-factorable, write "prime"


4a to the scond power +23a - 35

Factor completel, if the polynomial is non-factorable, write "prime"

:confused: :confused:

[kateuk]

x^2 - 5x + 4
you have to find two number that multiply to make 4 and add to make - 5
for example, -4 or -1.
Try putting them in brackets.
(x-4)(x-1)
Now multiply it out. Yes, it works, so that's it factorised. You do the 2nd one yourself.