Question

Divide f(x) by d(x), and write a summary statement in the form indicated.
f(x) = x4 + 5x3 - 2x2 + 5x - 3; d(x) = x2 + 1
A: f(x) = (x2 + 1)( x2 + 5x - 3)
B: f(x) = (x2 + 1)( x2 + 5x - 3) - 15x - 9
C: f(x) = (x2 + 1)( x2 - 5x - 3) - 15x - 9
D: f(x) = (x2 + 1)( x2 - 5x - 3)
Please help me! Is it B??

Answer 1

You could use either long division or synthetic division. Which sounds easier to you? Go for it. Or ask for some guidance towards finding your own answer.

Answer 2

c

Answer 3

So its C?

Answer 4

Please let's not deal in a, b or c. Why not actually do the work and then know for sure which answer is the correct one? You'll need this skill later on.

Answer 5

Use the Rational Zeros Theorem to write a list of all possible rational zeros of the function.
f(x) = -2x4 + 4x3 + 3x2 + 18
Can you guys also help me solve this? I never understood this!

Answer 6

Would you mind posting each new question as a new question? Type it into the "Ask a question" box. Could you please explain what "rational zero" means?

Answer 7

A rational zero of a function f(x) is a zero which is rational.
By definition, a rational number is one which can be expressed as m/n, for m and n integers and for n non-zero
Can u help me?