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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Slide 1: Tekstslide
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In deze les zitten 25 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 50 min

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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:
x2+3x18=0
(x+6)(x3)=0
X+6=0
x3=0
x=6
x=3
x+6=0

Slide 24 - Tekstslide

Homework time
Make:      §11.4    A x B = 0

Slide 25 - Tekstslide