224k views
3 votes
Patel is solving 8x2 + 16x + 3 = 0. Which steps could he use to solve the quadratic equation? Select three options. 8(x2 + 2x + 1) = –3 + 8 x = –1 Plus or minus StartRoot StartFraction 5 Over 8 EndFraction EndRoot x = –1 Plus or minus StartRoot StartFraction 4 Over 8 EndFraction EndRoot 8(x2 + 2x + 1) = 3 + 1 8(x2 + 2x) = –3

User Kirpit
by
7.8k points

2 Answers

1 vote
The steps Patel could use to solve the quadratic equation 8x^2 + 16x + 3 = 0 are:

1. Rewrite the equation in standard form: 8x^2 + 16x + 3 = 0
2. Use the quadratic formula x = (-b ± √(b^2 - 4ac)) / 2a, where a = 8, b = 16, and c = 3.
3. Simplify the expression under the square root: √(16^2 - 4(8)(3)) = √(256 - 96) = √160 = 4√10
4. Substitute the values into the quadratic formula: x = (-16 ± 4√10) / 16
5. Simplify the expression: x = (-1 ± √10 / 2)

Therefore, the options that describe these steps are:

- Use the quadratic formula x = (-b ± √(b^2 - 4ac)) / 2a, where a = 8, b = 16, and c = 3.
- Simplify the expression under the square root: √(16^2 - 4(8)(3)) = √(256 - 96) = √160 = 4√10
- Substitute the values into the quadratic formula: x = (-16 ± 4√10) / 16

So, the correct options are:

- Use the quadratic formula x = (-b ± √(b^2 - 4ac)) / 2a, where a = 8, b = 16, and c = 3.
- Simplify the expression under the square root: √(16^2 - 4(8)(3)) = √(256 - 96) = √160 = 4√10
- Substitute the values into the quadratic formula: x = (-16 ± 4√10) / 16
User Mostafaznv
by
8.2k points
2 votes

Answer:

Explanation:

Patel is solving 8x2 + 16x + 3 = 0. Which steps could he use to solve the quadratic equation? Select three options. 8(x2 + 2x + 1) = –3 + 8 x = –1 Plus or minus StartR…

✓ Answer:8(x2 + 2x) = –3 8(x2 + 2x + 1) = –3 + 8 x = –1 Plus or minus StartRoot StartFraction 5 Over 8 EndFraction EndRootStep-by-step explanation:S…

User KTB
by
7.9k points