1. Simplify (or Evaluate)
Warm-up
40x2 + 30x2 + 20x + -15x +3
What is the coefficient of the green term?
Combine all like terms in the algebraic expression.
Simplify (or Evaluate)
4[3(x + 9)+2]
(2b+5)-(8b+6)+3(b-2)

2. Warm-up 40x2 + 30x2 + 20x + -15x +3 20 70x2 + 5x + 3
What is the coefficient of the green term? 20
Combine all like terms in the algebraic expression.
70x2 + 5x + 3

3. Simplify (or Evaluate)
Warm-up
Simplify (or Evaluate)
4[3(x + 9)+2]
=4(3x ) – the brackets go away and become parenthesis
=4(3x + 29)
=12x – we use the Distributive Property
=12x + 116
(2b+5)-(8b+6)+3(b-2)
= (2b+5)-(8b+6)+3b -6 – we use the Distributive Property
= (2b + 5) -8b-6 +3b-6
= -3b -7 – combine like terms
= -3b -7

4. Adding & Subtracting, Real Numbers
Sections 1.2 & 1.3 from Holt Algebra I

5. Homework
Section 1.2, pg :
13-22 all, all

6. Number Lines Example: -3 + 6
First go to the left 3 spaces (go into the negative)
Then move from -3 to the right 6 spaces (go towards the positive)

7. Absolute Value
The Absolute Value of something is a number’s distance from 0.
The absolute value of -5 is 5, and is written with a straight bracket on each side of the number: │-5 │ (The light orange boxes show the distance of the absolute value)

8. Homework
Section 1.2, pg :
13-22 all, all