Which of the following is the quadratic equation?
A. 5x + 2 = 0
B. 2x^2 + 3x + 4 = 0
C. 3x - 4 = 0
D. x + 7 = 0
Answer:B
Which of the following is the quadratic equation?
A. 5x + 2 = 0 B. 2x^2 + 3x + 4 = 0 C. 3x - 4 = 0 D. x + 7 = 0