Legge di annullamento del prodotto
a*b = 0 se e solo se a=0 o b = 0
Legge di Annullamento del Prodotto
Prodotto di due numeri:
a × b = 0
Se e solo se:
a = 0 OPPURE b = 0 (o entrambi)
In altre parole:
Se un prodotto è zero, almeno uno dei fattori deve essere zero
È una proprietà fondamentale per risolvere le equazioni
Esempi - Legge di Annullamento
Esempio 1:
(x - 3)(x + 5) = 0
Soluzioni: x - 3 = 0 → x = 3 OPPURE x + 5 = 0 → x = -5 Esempio 2:
2y(y - 7) = 0
Soluzioni: 2y = 0 → y = 0 OPPURE y - 7 = 0 → y = 7
Step 1/3
Casi Particolari della Divisione
CASO 1: Dividendo uguale a zero
0 ÷ a = 0 (sempre, se a ≠ 0)
Esempi:
0 ÷ 5 = 0
0 ÷ (-2) = 0
Regola: Zero diviso qualsiasi numero (diverso da zero) fa zero
The process 2/3
The process 3/3
Well done!
You have completed the first mission. You know more things than yesterday, but less than tomorrow. Click on the arrow to discover the hidden number and continue the adventure.
You've got the first number for the key!
The content
Do you know what should be included in an onboarding process?
The content 1/3
The content 2/3
The content 3/3
Let's go!
You're getting closer to earning the reward. Keep it up! Click the arrow, check the next number, and let the challenge continue.
You've got the second number for the code!
Identity
Would you be able to create a spectacular onboarding?
The identity 1/3
The Identity 2/3
The identity 3/3
Hooray!
Challenge completed! For you, onboarding processes are easier than making a microwave brownie. Click the arrow to keep exploring.
You've got the third number for the key!
Next steps
And after the onboarding phase... what comes next?
Next steps 1/3
Next steps 2/3
Next steps 3/3
Mission accomplished!
This adventure comes to an end. Your knowledge about onboarding processes leaves no one indifferent. Click on the arrow and enter the password to access your reward.
You've got the last number OF the code!
Enter the password
What is the key?
Legge di annullamento del prodotto
Giovanni Marino
Created on October 2, 2025
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Transcript
Legge di annullamento del prodotto
a*b = 0 se e solo se a=0 o b = 0
Legge di Annullamento del Prodotto Prodotto di due numeri: a × b = 0 Se e solo se: a = 0 OPPURE b = 0 (o entrambi) In altre parole: Se un prodotto è zero, almeno uno dei fattori deve essere zero È una proprietà fondamentale per risolvere le equazioni
Esempi - Legge di Annullamento
Esempio 1: (x - 3)(x + 5) = 0 Soluzioni: x - 3 = 0 → x = 3 OPPURE x + 5 = 0 → x = -5 Esempio 2: 2y(y - 7) = 0 Soluzioni: 2y = 0 → y = 0 OPPURE y - 7 = 0 → y = 7
Step 1/3
Casi Particolari della Divisione CASO 1: Dividendo uguale a zero 0 ÷ a = 0 (sempre, se a ≠ 0) Esempi: 0 ÷ 5 = 0 0 ÷ (-2) = 0 Regola: Zero diviso qualsiasi numero (diverso da zero) fa zero
The process 2/3
The process 3/3
Well done!
You have completed the first mission. You know more things than yesterday, but less than tomorrow. Click on the arrow to discover the hidden number and continue the adventure.
You've got the first number for the key!
The content
Do you know what should be included in an onboarding process?
The content 1/3
The content 2/3
The content 3/3
Let's go!
You're getting closer to earning the reward. Keep it up! Click the arrow, check the next number, and let the challenge continue.
You've got the second number for the code!
Identity
Would you be able to create a spectacular onboarding?
The identity 1/3
The Identity 2/3
The identity 3/3
Hooray!
Challenge completed! For you, onboarding processes are easier than making a microwave brownie. Click the arrow to keep exploring.
You've got the third number for the key!
Next steps
And after the onboarding phase... what comes next?
Next steps 1/3
Next steps 2/3
Next steps 3/3
Mission accomplished!
This adventure comes to an end. Your knowledge about onboarding processes leaves no one indifferent. Click on the arrow and enter the password to access your reward.
You've got the last number OF the code!
Enter the password
What is the key?