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Do Now. Solve. Check your answers for extraneous solutions:. Objectives. 15.October.2012 Scholars will be able to… Divide polynomials using long division and synthetic division. Use the Remainder and Factor Theorems. Wait. Write down two key points from Friday and one question.
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Do Now • Solve. Check your answers for extraneous solutions:
Objectives • 15.October.2012 • Scholars will be able to… • Divide polynomials using long division and synthetic division. • Use the Remainder and Factor Theorems.
Wait • Write down two key points from Friday and one question.
Dividing Polynomials • Graph . • Where does this have a zero? • We know that this has a zero at . • Therefore divides the polynomial and the result will be some other polynomial . • Here we can factor and figure out what is quickly.
Dividing with Long Division • Factor if is a factor:
Dividing with Long Division • Factor if there is a zero at :
Dividing with Long Division • Factor if is a factor:
Divide • Is the quotient a polynomial? • Is a factor of ?
Remainder Theorem • If is a polynomial divided by , the remainder is . • A polynomial has a factor of iff.
Example • Is a factor of ? • Is a factor of ?