Solve the Fractional Quadratic: x^2/2 + x/4 + 1 = 0

Question

Solve the following equation:

x22+x4+1=0 \frac{x^2}{2}+\frac{x}{4}+1=0

Video Solution

Solution Steps

00:00 Find X
00:04 Multiply by 4 to eliminate fractions
00:19 Identify the coefficients
00:25 Use the roots formula
00:44 Substitute appropriate values according to the given data and solve
01:09 Calculate the square and products
01:18 There's no such thing as a root of a negative number
01:31 Therefore there is no solution to the problem

Step-by-Step Solution

To solve the quadratic equation x22+x4+1=0 \frac{x^2}{2} + \frac{x}{4} + 1 = 0 , follow these steps:

  • Step 1: Convert to Standard Form
    Begin by eliminating the fractions to simplify. Multiply the entire equation by 4, the least common multiple of the denominators: 4(x22+x4+1)=40 4 \left( \frac{x^2}{2} + \frac{x}{4} + 1 \right) = 4 \cdot 0 which simplifies to: 2x2+x+4=0 2x^2 + x + 4 = 0 Now, it's in standard quadratic form: ax2+bx+c=0 ax^2 + bx + c = 0 , with a=2 a = 2 , b=1 b = 1 , and c=4 c = 4 .
  • Step 2: Evaluate the Discriminant
    The discriminant of a quadratic equation ax2+bx+c=0 ax^2 + bx + c = 0 is calculated as: b24ac b^2 - 4ac Substituting the values, we have: 12424=132=31 1^2 - 4 \cdot 2 \cdot 4 = 1 - 32 = -31 Since the discriminant is negative, it indicates that there are no real solutions for the equation.

Conclusion: The given quadratic equation has no real solutions due to the negative discriminant.

The correct answer to the problem is therefore, No solution.

Answer

No solution