graph each of the functions
e) f(x)= x^4 - 2
f) f(x)= -x^3 - 3x^2
how do I factor these to find the roots? I tryed using the factor thm for thw first one but it did not work...and the root of 2 is not a whole number. Can someone please tell me how to do this, thanks.
g) y=-x^3 + 3x^2 - x
= -x ( x^2 + 3x)
so the roots are 0 and nedative 3 but since the X^2 is in the brackets and that can't be further simplified in to whole numbers, does'nt that mean that -3 is a turning point, since it is a double root? So why does the graph do down after passing the -3 pt?
e) f(x)= x^4 - 2
f) f(x)= -x^3 - 3x^2
how do I factor these to find the roots? I tryed using the factor thm for thw first one but it did not work...and the root of 2 is not a whole number. Can someone please tell me how to do this, thanks.
g) y=-x^3 + 3x^2 - x
= -x ( x^2 + 3x)
so the roots are 0 and nedative 3 but since the X^2 is in the brackets and that can't be further simplified in to whole numbers, does'nt that mean that -3 is a turning point, since it is a double root? So why does the graph do down after passing the -3 pt?