How can you check if a number is a root of a polynomial function

Question -

How can you check if a number is a root of a polynomial function?

Answer -

The factors of the leading coefficient 1 are . Writing the possible factors as we get: Use synthetic division to test the possible zeros and find an actual zero: Recall that if you apply synthetic division and the remainder is 0, then c is a zero or root of the polynomial function.

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