The following is an example of

Trinomials

Step-by-step explanation:

Trinomials take the form of x^2+bx+c usually

and that is what the equation is in.

Binomials are like (x-2)(x+3)  in which you have to multiply each parenthesis item by eachother so you would do the previous equation as (x-2)(x+3) like

x times x plus x times 3 plus -2 times x plus -2 times 3.

If that is confusing, just ignore what I wrote right here because you will or you already learned this and it is a pain to type.

Monomials are like 3xy^2 where there is one term, terms being the group of the variables and coefficient numbers which can even be paired up with an exponent, so 3xy^2+4y^2 there are two terms which are both bolded.

Polynomials are like -2x+7.

Hope this explains some of the other questions if they are similar!

This guy explains polynomials really well! Credits and cheers!

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Not sure if this relates to your topic but it's the binomial theorem.

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Trinomials: link

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-16+12= -4

Step-by-step explanation:

When we mins 12 from 16 (16-12) we get 4.

Similarly. When we minus 16 from 12 (12-16) we get -4 because we choose the sign with the greater number.