Name:_________________________________
M3L5H
Accordino-Math 7
Date:_________
Period:________
Lesson 5: Distributive Property Twice (FOIL)
Bellringer
1) Simplify the expression below using the distributive property.
-6 (-x + 1.3)
2) Tim is fencing in his back yard. He determines that the length of the fencing needs
to be five feet more than the width. Write an expression that represents the area of
Tim’s back yard.
Name:_________________________________
M3L5H
Accordino-Math 7
Date:_________
Period:________
Lesson 5: Distributive Property Twice (FOIL)
Notes
REVIEW:
What does 32 look like in expanded form? 33?
What then, happens when you multiply two variables?
x x
Let’s think about the box method for multiplying that we used yesterday. Label the box.
What do you notice?
What do you know about finding the area of a square? How do we label the answer?
So x  x must equal _______________.
How do you think you could solve the following problem?
(x + 3)(x – 5)
This is actually two distributive problems!
Steps:
1. Distribute the first term of the first binomial to each term in the
second binomial.
2. Distribute the second term of the first binomial to each term in
the second binomial.
3. WATCH YOUR SIGNS!
4. Simplify by combining like terms!
“You know
what I’m
You
yelling
about!”
Name:_________________________________
M3L5H
Accordino-Math 7
Date:_________
Period:________
Let’s solve this problem:
(x + 3)(x – 5)
And this one!
(x – 4)(x – 6)
Now you try one!
(x – 2)(x – 8)
Ex1) Find the product of (3x -2) and the multiplicative inverse of 3.
Name:_________________________________
M3L5H
Accordino-Math 7
Date:_________
Period:________
Lesson 5: Distributive Property Twice
Homework
1) Write an expression to represent the area of a rectangle with sides equivalent to
(x + 4) and (x – 6).
Name:_________________________________
M3L5H
Accordino-Math 7
Date:_________
Period:________
Lesson 5: Distributive Property Twice
Exit Ticket
1.
Find the product:
(4x -5)( x + 2)
2.
A farmer is building a fence for his pigs. He determines that the length of the fencing needs to be three feet
longer than the width. Write an expression that represents the perimeter of the fencing. Make sure you
combine like terms to simplify your answer to standard form.