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3TH §9.3/ 3TVWO §9.6 Calculating with powers
3Thavo and 3Tvwo
§9.3 or §9.6 Calculating with powers
This § buids on, on:
§9.2 (havo) and §9.5 (vwo) Calculating with exponents, that we just worked on!
You will learn a few rules, in order to get rid of brackets.
1 / 21
volgende
Slide 1:
Tekstslide
Wiskunde
Middelbare school
havo
Leerjaar 3
In deze les zitten
21 slides
, met
interactieve quiz
en
tekstslides
.
Lesduur is:
50 min
Start les
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Onderdelen in deze les
3Thavo and 3Tvwo
§9.3 or §9.6 Calculating with powers
This § buids on, on:
§9.2 (havo) and §9.5 (vwo) Calculating with exponents, that we just worked on!
You will learn a few rules, in order to get rid of brackets.
Slide 1 - Tekstslide
Suppose we want to write this without brackets,
just like Carl wants to:
Question for one of you:
' ............ , what does it look like, without brackets?'
Slide 2 - Tekstslide
Just like = x x
We now have 4x instead of only x. It works the same.
Question for one of you.
Might be you!
Think of what has to be filled in
on the dots.
' ............., please give us your answer!'
Solution is in the next slide.
x
3
x
x
x
Slide 3 - Tekstslide
Solution:
Slide 4 - Tekstslide
Let's try to find a general rule for this.
We now know that: = =
Now more general:
And finally:
Slide 5 - Tekstslide
One more RULE comes up this lesson:
Now about FRACTIONS!
Think about what to fill in on the dots:
Solution in next slide.
Slide 6 - Tekstslide
Solution:
Slide 7 - Tekstslide
What to fill in on the last dots?
Slide 8 - Tekstslide
Solution:
Slide 9 - Tekstslide
Now the 2nd RULE, about FRACTIONS,
in general terms (so with variables):
Slide 10 - Tekstslide
Some examples now.
Number 1:
Slide 11 - Tekstslide
Example 2:
Slide 12 - Tekstslide
A little practice:
Calculate and fill in your answer in the next slide:
= .......
Choose from: A. 16 B. 64
C. D. 12
(
4
x
)
3
x
3
x
3
x
1
2
6
4
x
3
Slide 13 - Tekstslide
(4x)^3 = ......
A
16x^3
B
64x^12
C
64x^3
D
12x^3
Slide 14 - Quizvraag
Solution:
Slide 15 - Tekstslide
Slide 16 - Tekstslide
Finally Task 2.
Work this one out on scrap paper and compare later.
Slide 17 - Tekstslide
Solution:
Slide 18 - Tekstslide
Finally ......
§9.3 Calculating with powers
instructs you on
one more important topic.
See next slide!
Slide 19 - Tekstslide
Slide 20 - Tekstslide
Homework time.
Make:
§9.2 Calculating with exponents (skipping 18 up to 21)
§9.3 Calculating with powers
+ Check with the Solutionsbook and finally
+ Hand in pics of your work on GoogleClassroom.
Slide 21 - Tekstslide
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