Although you didn't provide any answer choices:
A trinomial is an expression with exactly three terms that can't be combined an example would be this
x^2 - 3x + 1
None of those terms can be combined
x^2 + 3 - 4 has three terms but it isn't considered a trinomial because you can simplify it to x^2 - 1 which is known as a binomial because it has 2 terms in it's simplified form.
hope this helps C:
3200620009 is the answer to your question
Answer:
10
20
Step-by-step explanation:
correct c=3 x 10
incorrect i=-1
-------
incorrect= 10
number of questions= 10+10= 20
