Aim: How do we multiply a binomial by a binomial?

Aim: How do we multiply a binomial by a binomial?

Do Now: 1. 4x (x + 5)

2. 3x ( + 3x -2)

Agenda

• Homework Review• Homework # 6• Review of yesterday’s lesson• Lesson• Practice

Homework #6

1) (b -8) (b – 10)2) (6 + y) (5 + y)3) (x – 3) ( x -3)4) (5x – 2) (x – 2)

Answers to homework #5

1. 3(x+4) = 3x + 122. 4 (3x +2) = 12 3. y(x+4) = yx + 4y4. 7z(6) = 42 z5. -5(15c – 4c) = -55

What do we remember about distributive property?

Remember how we multiply a monomial and polynomial…

(4x) (3x + 5) = (4x) (3x) + (4x) (5) = 12 + 20xLet’s try…

Double Distributive (4x + 5) (3x – 5)

1) Multiply (distribute) the first term times EACH of the terms in the second binomial.

2) Multiply the second term times EACH of the terms in the second binomial.

(4x + 5) (3x – 5)

3)Multiply the terms(4x)(3x) + (4x)(-5) + (5)(3x) + (5)(-5)

4) Add like terms

Together again!

(x + 3) (x-4)

Practice!

1. (x + 4) (x + 4)

2. (x + 5)(x+ 6)

3. (x+ 5) (x -1)

What does mean?

Perform the indicated property:

Together!

Practice!

Exit Slip

On a separate sheet of paper with your first and last name on it. Do the following:1. (6x-4)(x+2)