Questions: Use the quadratic formula to solve for x. 2x^2+5x=4
Round your answer to the nearest hundredth. If there is more than one solution, separate them with commas. x=
Transcript text: Use the quadratic formula to solve for $x$. \[ 2 x^{2}+5 x=4 \]
Round your answer to the nearest hundredth. If there is more than one solution, separate them with commas. \[ x= \]
Solution
Solution Steps
Step 1: Identify the coefficients
The coefficients are \(a = 2\), \(b = 5\), and \(c = -4\).
Step 2: Calculate the discriminant
The discriminant \(\Delta\) is calculated as \(b^2 - 4ac = 5^2 - 4_2_-4 = 57\).
Since \(\Delta > 0\), there are two distinct real solutions.
Step 3: Apply the quadratic formula
The solutions are calculated using the formula \(x = \frac{-b \pm \sqrt{\Delta}}{2a}\).
Thus, the solutions are \(x_1 = 0.64\) and \(x_2 = -3.14\).
Final Answer:
The solutions to the quadratic equation \(ax^2 + bx + c = 0\) are \(x_1 = 0.64\) and \(x_2 = -3.14\).