factor theorem
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
A rule stating that a polynomial has (x minus a) as a factor if and only if substituting a into the polynomial gives zero.
Test yourself
Which word fits the gap? "Using the _____, she confirmed that (x-2) was a factor because plugging in 2 made the expression equal zero."
Answer: factor theorem
In your own words, what does "factor theorem" mean?
A rule stating that a polynomial has (x minus a) as a factor if and only if substituting a into the polynomial gives zero.
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