1
AssignmentMultiple Select

Solving Quadratic Equations: Completing the Square

Question 1 • FL-1200710-Mathematics for College Algebra A

Substitute the values for a, b, and c into b2 – 4ac to determine the discriminant. Which quadratic equations will have two real number solutions? (The related quadratic function will have two x-intercepts.) Check all that apply. 0 = 2x2 – 7x – 90 = x2 – 4x + 40 = 4x2 – 3x – 10 = x2 – 2x – 80 = 3x2 + 5x + 3

Answer
A
0 = 2x2 – 7x – 9
B
0 = x2 – 4x + 4
C
0 = 4x2 – 3x – 1
D
0 = x2 – 2x – 8
E
0 = 3x2 + 5x + 3