223k views
3 votes
Soit B(x)=4x²-12x. Résoudre dans R l'équation B(x)=-9

User Sumitya
by
8.9k points

2 Answers

7 votes

Answer:

B(-9) = 432

Explanation:

B(x) = 4x² - 12x

B(-9) = 4(-9)² - 12(-9)

B(-9) = 4(81) + 108

B(-9) = 324 + 108

B(-9) = 432

User Eunhye
by
8.8k points
5 votes

Answer:

432

Explanation:

B(x) = - 9

Replacing the value of x in the equation,

4x² - 12x

= 4 * (-9)² - 12 * (-9)

= 4 * 81 + 108

= 324 + 108

= 432

_________

hope this helps!

User Tayyab Mazhar
by
7.5k points

Related questions

asked Jun 9, 2024 56.0k views
Deodat asked Jun 9, 2024
by Deodat
8.2k points
2 answers
2 votes
56.0k views
2 answers
3 votes
59.5k views
asked Dec 5, 2022 125k views
Aneel asked Dec 5, 2022
by Aneel
8.1k points
1 answer
3 votes
125k views