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Notes 32 Multiplying Polynomials
Objectives:
Multiply polynomials
Use binomial expansion to expand binomial expressions that are raised to a positive integer powers
Who uses this?
Business managers can multiply polynomials when modeling total manufacturing costs.
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Distribute!!
In case you missed it the first time....
Distribute!!!Foil is dumb
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Multiplying a monomial and a polynomial
Ex. Find each product.
a.
b.
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Try these:
Ex. Find each product
a.
b.
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Multiplying Polynomials
Ex. Find each product
a.
b.
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Try these:
Ex. Find each product.
a.
b.
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Ex. Mr. Silva manages a manufacturing plant. From 1990 through 2005, the number of units produced (in thousands) can be modeled by N(x) = 0.02x2 0.2x + 3. The average cost per unit (in dollars) can be modeled by C(x) = 0.002x2 0.1x + 2, where x is the number of years since 1990. Write a polynomial T(x) that can be used to model Mr. Silva's total manufacturing costs.
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Expanding a Power of a Binomial
Ex. Find the product
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Ex. Expand each expression
a.
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Ex. Expand each expression
a.
b.
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Try these:
Ex. Expand each expression
a.
b.
c.