Test Flashcards

1
Q

D>0

A

2 oplossingen

X1= -b-D/2a

X2=-b+D/2a

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2
Q

D<0

A

Geen oplossingen

V=0/

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3
Q

D=0

A

X1,X2=-b/2a

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4
Q

Onvolledige
1c=0
2b=0
3b,c=0

A

1 x•(…)
2 (…+.)•(…-..)
3 V=0

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5
Q

Def 2de graadsvergelijking

A

Vergelijking met de vorm ax2+bx+c=0

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6
Q

Metkwaardigproduct oef vb
28x=-49-4x2

A

14x2+28x+49=0
2 28x=2•2x•7
3 (2x•7)

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7
Q

S=. P=.

A
  1. x1+x2 = -b/a
  2. x1•x2 = c/a
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8
Q

Formule als je de s en p hebt

A

X2 − Sx + P = 0

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