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1 Notes 33 Dividing Polynomials Objectives: Use long division and synthetic division to divide polynomials Who uses this? Electricians can divide polynomials in order to find the voltage in an electrical system.
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Notes 33 Dividing Polynomials - Home - Wando High Schoolwandohigh.ccsdschools.com/UserFiles/Servers/Server...1 Notes 3 3 Dividing Polynomials Objectives: Use long division and synthetic

May 28, 2018

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Page 1: Notes 33 Dividing Polynomials - Home - Wando High Schoolwandohigh.ccsdschools.com/UserFiles/Servers/Server...1 Notes 3 3 Dividing Polynomials Objectives: Use long division and synthetic

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Notes 3­3 Dividing Polynomials

Objectives:

­ Use long division and synthetic division to divide polynomials

Who uses this?

Electricians can divide polynomials in order to find the voltage in an electrical system. 

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Notes 3­3 Dividing Polynomials

­ Divide a polynomial by a monomial

Ex.

­ Division Algorithm (Long Division)

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Ex. 

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Ex. 

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Ex. 

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Ex. 

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Synthetic Division

Step 1: Write the terms in descending order with respect to their exponent. Then write the coefficients. 

Step 2: Write the constant r of the divisior x ­ r. Bring down the first coefficient. 

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Step 3: Multiply the first coefficient by r. Write the product under the second coefficient then add. 

Step 4: Multiply this sum by r and place under the third coefficient. Repeat until all the coefficients have been used. 

Step 5: Start with the power of x one less than the highest power. 

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Ex. 

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Ex. 

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Ex.

Ex. 

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Ex.

Ex. 

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Ex. Use synthetic substitution to evaluate the polynomial for the given value.

for x = 4

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Try these:

Ex. Use synthetic substitution to evaluate the polynomial for the given value. 

a. for x = 

b.  for x = ­3