Question

Identify which equation is a quadratic equation.
Answer

y = -5x - 3

y = -4x(x + 10) + 34

y + x2 = (x - 4)(x + 3)

y - 2 = (x - 2)(x2 + 1)

Answer 1

y = -4x(x + 10) + 34

Answer 2

y = -4x(x + 10) + 34
since the highest exponent of x = -4x * x = x²