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Effectus [21]
4 years ago
7

Which of the following is a root of the polynomial shown below? f(x)=x^3-4x^2-11x+30

Mathematics
2 answers:
Pani-rosa [81]4 years ago
8 0

Answer:

A

Step-by-step explanation:

The answer is A for Apex Precal

Sliva [168]4 years ago
4 0
It is a root of the polynomial if it causes the equation to equal 0.

Let's try each number.

Substituting -3 for x...

(-3)³ - 4(-3)² -11(-3) + 30

-27 - 36 + 33 + 30

0

Therefore, a. -3 is a root to our polynomial.

You could try the rest, but I won't waste time with it. None of the others are roots, and it's multiple choice which means usually just one answer.
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