Solve the equation 2x²+ 8x - 1 = 0 by completing the square. Give your answers correct to 2 decimal places.

asked Sep 17, 2023 20.3k views

2 votes

Solve the equation

2x²+ 8x - 1 = 0
by completing the square.
Give your answers correct to 2 decimal places.

3.7k points

Please log in or register to add a comment.

3 votes

Answer:

x = 0.08

Explanation:

2x²+ 8x - 1 = 0

4x + 8x - 1 = 0

12x - 1 = 0

Add 1 to the -1 and to the 0 too

12x = 1

Divide both side

x = 0.08

3.6k points

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

3.4m questions

4.3m answers