Determine where the real zeros of f(x)=x^4-2x^3+x-2 are located.

a.
at -1 & 2
c.
at 0 & 1
b.
at 1 & 2
d.
at -1 & 1

a. at -1 & 2

Step-by-step explanation:

The given function is

.

Equate the function to zero.

.

Factor by grouping;

Factor further;

Apply the zero product property;

Solve for x;

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d