197k views
0 votes
Solve the inequality and express your answer in interval notation. x² + 8x + 3 < 0

User BobK
by
8.6k points

1 Answer

5 votes

Answer:

Convert the inequality to an equation.

x2+8x+3=0" role="presentation">x2+8x+3=0x2+8x+3=0

Use the quadratic formula to find the solutions.

-b&#xB1;b2-4(ac)2a" role="presentation">−b±√b2−4(ac)2a-b±b2-4(ac)2a

Substitute the values a=1" role="presentation">a=1a=1, b=8" role="presentation">b=8b=8, and c=3" role="presentation">c=3c=3 into the quadratic formula and solve for x" role="presentation">xx.

-8&#xB1;82-4&#x22C5;(1&#x22C5;3)2&#x22C5;1" role="presentation">−8±√82−4⋅(1⋅3)2⋅1

User Abhishek Kanojia
by
8.3k 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