Algebra 2: Resources and Extra Practice - 3.01 Polynomial Long Division

Algebra 2: Resources and Extra Practice

3.01 Polynomial Long Division

Essential Question:

How can long division be used to find the factors of polynomial functions?

Lesson301.mp4

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Khan Academy Resources

Intro to long division of polynomialsAny quotient of polynomials a(x)/b(x) can be written as q(x)+r(x)/b(x), where the degree of r(x) is less than the degree of b(x). For example, (x²-3x+5)/(x-1) can be written as x-2+3/(x-1). This latter form can be more useful for many problems that involve polynomials. The most common method for finding how to rewrite quotients like that is *polynomial long division*.

Dividing polynomials: long divisionSal divides (x^2-3x+2) by (x-2) and then checks the solution.

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