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.
Hi!
I’m still a 8th grader ( doing 9th grade math. ) So I can’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 include positive exponents. Remember, no negative exponents are allowed. Monomials cannot have addition or subtraction signs in them. They can't have a variable in the denominator either.
Examples of Monomials :
5
x
5x
5xy
5xy2
Examples of numbers that are NOT monomials :
5-2
5xy + 2
6/x
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Binomials
Binomials are just two monomials;
Examples of Binomials :
5 + 2
x + y
5x - 4x2
5xy - 6
5xy2- 7xy
Examples of numbers that are NOT Binomials :
5-2
5xy
5xy + 2-2
5xy + 2+6
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Trinomials
Trinomials are just three monomials;
Examples of Trinomials :
5 + 2 + 6
x + y + 3
5x - 4x2 + 2
5xy - 6 - 5xy
5xy2- 7xy + 7
Examples of numbers that are NOT Trinomials :
5-2
5xy +3
5xy + 2-2+3
5xy + 22
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So, what ARE polynomials? Well lookee 'ere :
Polynomials
A monomial, or multiple monomials.
Examples of Polynomials :
5 + 2 + 6
x + y + 3
5x - 4x2 + 2
5xy - 6 - 5xy
5xy2- 7xy + 7
5 + 2
x + y
5x - 4x2
5xy - 6
5xy2- 7xy
5
x
5x
5xy
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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