8x^5 +4x^2 - 12
= 4(2x^5 + x^2 -3)
answer is A
C. Divide the previous value by 5
Answer:
14
Step-by-step explanation:
Answer:
The factor form of given expression is (x-4)(x-2i)(x+2i).
Step-by-step explanation:
The given expression is

It can be written as

According to the rational root theorem, all possible rational roots are in the form of

Where, a₀ is constant term and
is leading coefficient.

Since the value of f(x) is 0 at x=4, therefore 4 is a root of the function and (x-4) is a factor of given expression.
Use synthetic method to find the remaining factors.



Therefore the factor form of given expression is (x-4)(x-2i)(x+2i).
Answer:
The answer is 18.
Step-by-step explanation:
9x2=18