Answer:-
A quadratic equation is in the form ax² + bx + c = 0, where a ≠ 0. If an equation lacks the x² term, it is not quadratic. For example, 2x + 5 = 0 is linear, not quadratic, because it has no x². Similarly, an equation like x³ - 4x² + 2 = 0 is cubic since it has an x³ term. To determine if an equation is quadratic, check if the highest exponent of x is exactly 2—nothing more, nothing less. Let me know the options, and I’ll help you pick the right one!
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