25-1 Multiplying Binomials

25-1 Multiplying Binomials

By OLIVIA GREEN

Multiple Choice

Classify the following polynomial

5x-5

• Monomial

• Binomial

• Trinomial

• None of these

25-1 Multiplying Binomials

Two Methods: FOIL Method & BOX Method​

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First

Outer

Inner

Last​

​Example: (x+7)(3x-2)

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Your turn... (x+7)(x+2)​

Multiple Choice

(x+9) (x+3)

• $$2x+12x+27$$  

• $$x^2+12x+27$$  

• $$2x+27$$  

• $$x^2+27$$  

Multiple Choice

$$\left(4x+3\right)\left(2x+1\right)$$  

• $$8x^2+10x+3$$  

• $$8x^2+3$$  

• $$6x^2+10x+3$$  

• $$6x^2+3$$  

Open Ended

What are the two methods you learned today? When do you use these two methods?

Multiple Choice

When do you use FOIL?

• When Multiplying Trinomials

• When Multiplying

  Binomials

• Whenever the box method doesn't work

• When Multiplying any Polynomials

Homework:​

25-1 Multiplying Binomials in Math XL due_______