kwadratische vergelijkingen oplossen Lesson Slides: 5 Slides

5 Slides • 3 Questions

1

kwadratische vergelijkingen oplossen

Hoofdstuk 6

2

wat gaan we doen?

Je krijgt telkens een vergelijking te zien en die ga je oplossen. Indien nodig: afronden op 2 dec. Je krijgt per vraag 3 minuten en je hoeft alleen je antwoord in te vullen.

Bijv: x=... V x=...

3

Open Ended

$x^2+6x=0$

Type response here

4

Oplossing

$x^2+6x=0$
$x\left(x+6\right)=0$
$x=0\ V\ x+6=0$
$x=0\ V\ x\ =-6$

5

Open Ended

$3x^2-5x+2=0$

Type response here

6

Oplossing

$3x^2-5x+2=0$
$a=3\ b=-5\ c=2$
$D=\left(-5\right)^2-4\cdot3\cdot2=1$
$x=\frac{--5\ +\ \sqrt{1}}{2\cdot3}=1$
$x=\frac{--5\ -\ \sqrt{1}}{2\cdot3}\approx0.67$

7

Open Ended

$x^2-7x+6=0$

Type response here

8

Oplossing

$x^2-7x+6=0$
$\left(x-6\right)\left(x-1\right)=0$
$x-6=0\ V\ x-1=0$
$x=6\ V\ x=1$

kwadratische vergelijkingen oplossen

Hoofdstuk 6

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