- If the roots of the quadratic equation 2x² – 7x + k = 0 are equal, then what is the value of k?
A
12.25
B
49/8
C
24.5
D
14
Answer and explanation
Correct Answer: B — 49/8
For equal roots, discriminant (D) = 0. Here, D = b² – 4ac. Substitute a = 2, b = –7, c = k and solve.