185k views
2 votes
Use the quadratic formula to solve the equation 2x^2+6x+4=0

User Ajith Jose
by
7.9k points

1 Answer

4 votes

Answer: The quadratic formula is used to find the roots of a quadratic equation of the form ax^2 + bx + c = 0. To use the quadratic formula, we need to identify the values of a, b, and c in the equation. In this case, a = 2, b = 6, and c = 4:

2x^2 + 6x + 4 = 0

The quadratic formula is:

x = (-b ± √(b^2 - 4ac)) / (2a)

Substituting the values of a, b, and c into the formula gives:

x = (-6 ± √(6^2 - 4 * 2 * 4)) / (2 * 2)

x = (-6 ± √(36 - 16)) / 4

x = (-6 ± √(20)) / 4

x = (-6 ± 2√5) / 4

So the solutions to the equation 2x^2 + 6x + 4 = 0 are:

x = (-6 + 2√5) / 4 and x = (-6 - 2√5) / 4

Explanation:

User Jim Barrows
by
7.6k points