Question

Is y=-1/2 (1(2-6))-4 an quadratic equation

Answer 1

`\textsf{No,}\sf y = (-1)/(2)(1(2-6))-4\textsf{ is not a quadratic equation.}`

Explanation:

A quadratic equation is an equation of the form
`\boxed{\sf ax^2 + bx + c = 0}`, where a, b, and c are real numbers and a is not equal to 0.

The left-hand side of the equation is called the quadratic expression, and it is a polynomial of degree 2.

The equation
`\sf y = (-1)/(2)(1(2-6))-4` is not in the form
`\sf ax^2 + bx + c = 0`.

The quadratic expression on the left-hand side is not a polynomial of degree 2.

Therefore, the equation is not a quadratic equation.