6.0k views
2 votes
the only solution of the equation x2 bx 16 = 0 is x = 4. what is the value of b? b = –16 b = –8 b = 8 b = 16

User Adeena
by
7.8k points

2 Answers

2 votes

Answer:

answer B=-8

Explanation:

x^2 + bx + 16 = 0

x = 4

4^2 + 4 * b + 16 = 0

16 + 4 * b + 16 = 0

4 * b = - 32 /4

b = - 32/4

b = - 8

User Egghese
by
8.7k points
0 votes
If you would like to find the value of b, you can do this using the following steps:

x^2 + bx + 16 = 0
x = 4

4^2 + 4 * b + 16 = 0
16 + 4 * b + 16 = 0
4 * b = - 32 /4
b = - 32/4
b = - 8

The correct result would be b = - 8.
User Gonzofish
by
9.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories