Question
Use the discriminant to determine how many and what kind of solutions the quadratic equation x^2-x=-(1)/(4) one real solution two complex (nonreal) solutions no real or complex solutions two real solutions
Solution
4.2
(193 Votes)
Brielle
Master ยท Tutor for 5 years
Answer
### One real solution
Explanation
## Step 1: Convert the equation to standard form### Rewrite the given equation
in standard quadratic form
. Add
to both sides to get
.## Step 2: Identify coefficients### Identify the coefficients from the standard form:
,
, and
.## Step 3: Calculate the discriminant### Use the formula for the discriminant,
. Substitute the values: \( \Delta = (-1)^2 - 4(1)\left(\frac{1}{4}\right) \).## Step 4: Simplify the discriminant### Calculate
.## Step 5: Determine the nature of the solutions### Since the discriminant is zero (
), the quadratic equation has one real solution.