Which of the following is a root of the polynomial shown below? f(x)=x^3-4x^2-11x+30
2 answers:
Answer:
A
Step-by-step explanation:
The answer is A for Apex Precal
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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Step-by-step explanation:
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