Question

Please verify, f(x) = x^3-4x^2+4x-16
X^2(x-4) 4(x-4)
(X^2+1)(x-4) (x-4)
Zeros are: -1,1,4

Answer 1

You want to find the roots of f(x)? (zero's)

Answer 2

Yes

Answer 3

f(x) = x^3 - 4x^2 + 4x - 16

0 = x^3 - 4x^2 + 4x - 16

x^2(x - 4) 4(x - 4)

(x-4)(x^2 + 4),

x -4 = 0
+4 +4

x = 4

Answer 4

The sum of two squares (without a GCF) is always prime, http://prntscr.com/39q1av