résolu

58 Un
Le
no
55 Who tells the truth?
1. Is the equality y x (y – 2) = 3 x y - 6 true for y = 2?
For y = 3?
2.
LV
This equality
is always true!
1
No!
You're wrong!
Who tells the truth? Explain the answer.
56 Des histoires de norim

Besoin d’aide svp !

58 Un Le No 55 Who Tells The Truth 1 Is The Equality Y X Y 2 3 X Y 6 True For Y 2 For Y 3 2 LV This Equality Is Always True 1 No Youre Wrong Who Tells The Truth class=

Répondre :

LoloVrusask

Bonjour :)

Explications étape par étape:

  • y × (y - 2) = 3 × y - 6

for y = 2

2 × (2 - 2) = 3 × 2 - 6

2 × 0 = 6 - 6

0 = 0

It's true.

  • y × (y - 2) = 3 × y - 6

for y = 3

3 × (3 - 2) = 3 × 3 - 6

3 × 1 = 9 - 6

3 = 3

It's true.

J'espère t'avoir aidé ;)

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