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2TTO §11.4 AxB=0 PTI
§11.4 A x B = 0
All the 'factorising', done in paragraphs 1, 2 and 3,
will be used several times again.
So you see that a chapter is not a bunch of loose items!
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Tekstslide
Wiskunde
Middelbare school
vwo
Leerjaar 2
In deze les zitten
25 slides
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interactieve quizzen
en
tekstslides
.
Lesduur is:
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§11.4 A x B = 0
All the 'factorising', done in paragraphs 1, 2 and 3,
will be used several times again.
So you see that a chapter is not a bunch of loose items!
Slide 1 - Tekstslide
timer
5:00
Slide 2 - Tekstslide
Recap on §11.2 and §11.3
To work your way much easier through §11.3,
first we look back shortly.
Slide 3 - Tekstslide
Slide 4 - Tekstslide
Slide 5 - Tekstslide
Task 1:
+ Open your Notebook and Textbook on p.178/179: §11.4 A x B = 0
+ Watch the equations from exercise 28
+ Compare them to those of exercise 35, p.183!
+ Key in your answer shortly in the next slide.
Slide 6 - Tekstslide
Main difference between equations from 28 and 35 is:
.............................
Slide 7 - Woordweb
Solution task 1:
+ The equations from 28 all end with: ................. = 0
+ The equations from 35 don't end with .............. = 0.
This means that the equations from §11.4, today's paragraph, are easier to solve. Just watch the next slide for an example!
Slide 8 - Tekstslide
Slide 9 - Tekstslide
Slide 10 - Tekstslide
Task 2:
Solve the equation below and key in your answers in the next slide.
Slide 11 - Tekstslide
(2m -4)(m+7) = 0 My answer is:
A. 0 and -7 B. 2 and -7
C. 0 and 2 D. -2 and 7
A
0 and -7
B
2 and -7
C
0 and 2
D
-2 and 7
Slide 12 - Quizvraag
(Task and) Solution:
Slide 13 - Tekstslide
Now a connection will be made between:
1st: solving quadratic equations, and
2nd: graphs for quadratic formulas, so parabolas!
By doing 30 together, you will learn to do the 2nd half of the paragraph.
Slide 14 - Tekstslide
TASK 3:
Slide 15 - Tekstslide
Solution TASK 3:
Slide 16 - Tekstslide
TASK 4:
Solution:
In the next slide, this equation will be solved.
Slide 17 - Tekstslide
TASK 5:
SOLUTION:
Slide 18 - Tekstslide
TASK 5:
SOLUTION:
Slide 19 - Tekstslide
TASK 5:
SOLUTION on the right:
(Do you remember that we found
the same outcome with the graph?)
Next comes
a bit of Theory,
summarising all this!
Slide 20 - Tekstslide
Slide 21 - Tekstslide
This is a Photo question!
+ Make 31 a in your Notebook
+ Make a picture of your work
+ Send it in, in the next slide and
+ We get a collection of your Solutions!
Slide 22 - Tekstslide
Send in your picture of 31a:
Slide 23 - Open vraag
Solution TASK 6:
x
2
+
3
x
−
1
8
=
0
(
x
+
6
)
(
x
−
3
)
=
0
X
+
6
=
0
x
−
3
=
0
x
=
−
6
x
=
3
x
+
6
=
0
Slide 24 - Tekstslide
Homework time
Make: §11.4 A x B = 0
Slide 25 - Tekstslide
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