Sewanhaka High School
Mrs. Lidowsky, Principal
Math 8
Mr. Long, Teacher
Period:______________
Date:________________________
Name:___________________________________
H.W. #2: Ditto
DO-NOW #2: Evaluate each expression:
1) 93 =
2) 3 • 43 • 54 =
3) Use a factor tree to write the prime factorization of 600 in exponential form
4)
Topic: Algebra
Main Idea: Laws of Exponents involving multiplication
Aim:
RECALL
How many times as many
apples did the tree grow on
Friday as compared to Tuesday?
Copy the problem, 9 x 27 = 243
over in factor form using only 3
as your factor and then
underneath that answer copy the
problem over again in
exponential form using 3 as
your base?
Who can write a rule for
multiplying two or more terms
with the same base?
NOTES
DAYS OF
WEEK
MONDAY
TUESDAY
WEDNESDAY
THURSDAY
FRIDAY
Factor
Form
Power of 3
(EXPONENTIAL FORM)
Value of
Power
What if the base is different?
What if you have variables?
What if you have more than two
numbers?
(1) 34 . 35 =
(2) 102 . 104 =
(3) 24 . 25 . 23 =
(4) x4 . x5 =
(5) x4 . y5 =
(6) x4 . y2 . x4 . y3 =
(7) 3x2 y2 .5x4 y2 =
Drill:
Directions: Write your answer in exponential form and then evaluate.
1) 24 =
2) 25 =
3) 24 * 25 =
4) ya * yb =
5) 32 * 36 =
6) y * y2 * y5 * y3 =
7) (4ab)(5a2b3) =
SUMMARY:
If time:
Directions: Write your answer in exponential form and then evaluate.
1) 33 =
2) 34 =
3) 33 * 34 =
4) y2 * y3 =
6) y4 * y2 * y2 * y3 =
5) 24 * 25 * 23 =