# Math SAT

I'm preparing for the math section of the SAT but there's just one part that really stumps me. I just can't seem to understand much about polynomials, finding zeroes/roots, and factoring. I also tried learning from Khan academy and other YouTube videos but none of them are helping. Are there any other websites that I should check out that could help me? I just need resources to understand this stuff.

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## 1 answer

Hi!

Iâ€™m still a 8th grader ( doing 9th grade math. ) So I canâ€™t answer all your questions. But I might have some helpful notes that your could use :

What are the types of polynomials? What ARE polynomials?!

What are the types of polynomials?

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Monomials

A monomial is a number, variable, or a product of a number and one or more variables. A monomial can also includeÂ positiveÂ exponents. Remember, no negative exponents are allowed. MonomialsÂ cannotÂ have addition or subtraction signs in them.Â They can't have a variable in the denominator either.

Examples of Monomials :Â

5

Â x

Â 5x

Â 5xy

Â 5xy2

Examples of numbers that are NOT monomials :Â

5-2

5xy + 2

6/x

---

Binomials

Binomials are just two monomials;

Examples of Binomials :Â

5 + 2

Â x + y

Â 5x - 4x2

Â 5xy - 6

Â 5xy2- 7xy

Examples of numbers that are NOT Binomials :Â

5-2

5xy

5xy + 2-2

5xy + 2+6

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Trinomials

Trinomials are just three monomials;

Examples of Trinomials :Â

5 + 2 + 6

Â x + y + 3

Â 5x - 4x2 + 2

Â 5xy - 6 - 5xy

Â 5xy2- 7xy + 7

Examples of numbers that are NOT Trinomials :Â

5-2

5xy +3

5xy + 2-2+3

5xy + 22

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So, what ARE polynomials?Â Well lookee 'ere :

Polynomials

A monomial, or multiple monomials.

Examples of Polynomials :

5 + 2 + 6

Â x + y + 3

Â 5x - 4x2 + 2

Â 5xy - 6 - 5xy

Â 5xy2- 7xy + 7

5 + 2

Â x + y

Â 5x - 4x2

Â 5xy - 6

Â 5xy2- 7xy

5

Â x

Â 5x

Â 5xy

Â 5xy2

Examples of numbers that are NOT Polynomials :

5-2

5xy2- 7xy + 7-2

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A polynomial in standard form is written by ordering the terms in a way that the degrees of the terms are descending from left to right.

Ex: 2x8+7x3y3+5x+3

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