The condition for equation ax2 + bx + c = 0 to be quadratic is
a ≠ 0, b ≠ 0
a < 0
a > 0
a ≠ 0
If a = 0, then ax2 + bx + c = 0 is no longer quadratic.
Condition for ax2 + bx + c = 0 to be a quadratic equation is
What will be the condition for (a2 - 9)x2 + bx + c = 0 to be a quadratic equation?
The condition for equation ax2 + bx + c = 0 to be linear is