CHAPTER 7 SUPPLEMENT: Multiplying Binomials

How many different ways can we calculate the area of the

rectangle below?

This is the area represented by the dimensions (x+3)(x+1).

What product does the area represent?

How do we represent (X+5)(x-2)? What is the product?

How do we represent (2x+4)(3x-1)? What is the product?

How do we show the dimensions for (x+3)2? Product?

What dimensions are represented by the following? What is

the product?

What is the product if x=3 and y=2?

How do we use the distributive property when multiplying two

binomials?

Foil Method: F_______, O_______, I_______, L_______

Find the product for (x+5) (x+3)

F O I L

TRY:

a) (x+3) (x-2)

b) (x-1) (x-3)

c) (2x+3) (x+2)

d) (2x-3)(3x-1)

e) (x-6)2

f) (2x+7)2

How can we multiply a trinomial and a binomial?

(x+2) (x2 + 3x + 2)

Distributive Method: Model:

Sometimes FOIL is only part of the method for solving an

equation.

a) (x+1) (5x+3) + (3)(2x+4)(6x-2)

b) (3y-2) (4y+5) – (y-7) (2y+3)