powers

• Wiskunde
• Middelbare school
• havo
• Leerjaar 1

Simplify

1.     -9c + 4b +3c -b                                 4.     -4c(2a-7b)

2.                                                                    5.      3(a-2b)-4(2a+b)

3. 

​2x​​8xy​​−​3y​​6xy​​

​3a​​2b​​+​a​​4b​​

Powers

lesson goals:

1. you can calculate powers

2. You can calculate powers with positive or negative base.

Read

 power is the product of identical factors

Rules for multiplication

• When multiplying two numbers  with the same signs, the answer is always positive.
  
  
• When multiplying two numbers  with different signs, the answer is always negative.

Individual work: Simplify

1.

2.

3. 

4. 

5(2​3​​)

5(−2)​2​​

−5⋅−2​2​​

(3−6)​3​​​​​

seatwork time

Do questions 33, 35,36, 37, 38,39 42,43,44 and 45*

from page 115 up to118.

give a similar term with 3ab

give a similar term with -4bc

what is -4a(5b)?