Pre-Calculus › Solving Quadratic Equations
True or false: for a quadratic function of form ax2 + bx + c = 0, if the discriminant b2 - 4ac = 0, there is exactly one real root.
True or false: for a quadratic function of form ax2 + bx + c = 0, if the discriminant b2 - 4ac = 0, there is exactly one real root.
True or false: for a quadratic function of form ax2 + bx + c = 0, if the discriminant b2 - 4ac > 0, there are exactly 2 distinct real roots of the equation.
True or false: for a quadratic function of form ax2 + bx + c = 0, if the discriminant b2 - 4ac > 0, there are exactly 2 distinct real roots of the equation.
Use the formula b2 - 4ac to find the discriminant of the following equation: 4x2 + 19x - 5 = 0.
Then state how many roots it has, and whether they are real or imaginary. Finally, use the quadratic function to find the exact roots of the equation.
Use the formula b2 - 4ac to find the discriminant of the following equation: 4x2 + 19x - 5 = 0.
Then state how many roots it has, and whether they are real or imaginary. Finally, use the quadratic function to find the exact roots of the equation.
Use the formula b2 - 4ac to find the discriminant of the following equation: x2 + 5x + 4 = 0.
Then state how many roots it has, and whether they are real or imaginary. Finally, use the quadratic function to find the exact roots of the equation.
Use the formula b2 - 4ac to find the discriminant of the following equation: x2 + 5x + 4 = 0.
Then state how many roots it has, and whether they are real or imaginary. Finally, use the quadratic function to find the exact roots of the equation.
Use the formula b2 - 4ac to find the discriminant of the following equation: x2 + 8x + 16 = 0.
Then state how many roots it has, and whether they are real or imaginary. Finally, use the quadratic function to find the exact roots of the equation.
Use the formula b2 - 4ac to find the discriminant of the following equation: x2 + 8x + 16 = 0.
Then state how many roots it has, and whether they are real or imaginary. Finally, use the quadratic function to find the exact roots of the equation.