One-Variable Quadratic Equation Understanding

Which of the following is a quadratic equation?

• 2x^2+2x+1 =0

• 3x+2 =0

• x+y =0

• 4(x+y) =0

In the quadratic equation x^2+ 2x+ 1 , which is quadratic term?

• x^2

• 2x

• 1

• x

It is a polynomial equation of degree two that can be written in the form ax^2 + bx + c = 0, where a, b, and c are real numbers and a ≠ 0.

• Linear Equation

• Quadratic Equation

• Linear Inequality

• Quadratic function

What is the standard form of quadratic equation?

• x^2+b+c = 0

• x+ y = 0

• ax^2+bx+c =0

• f(x)= 2x +1

In the quadratic equation x^2+ 2x+ 1 , what is the value of a?

• x

• 1

• 2

• 2x

In the quadratic equation x^2+ 2x+ 1 , what is the value of c?

• 2x

• 2

• x

• 1

Quadratic equation is a polynomial equation of degree two that can be written in the form ax^2 + bx + c = 0, where a, b, and c are real numbers and a ≠ ______.

A quadratic equation in one variable is a mathematical sentence of a degree of _______.

• 3

• 2

• 1

• 0

Identify the quadratic equation x+ y = 0 if it is quadratic or not quadratic.

• quadratic

• not quadratic

What is the standard form of 2x(x -1)?

• 2x -2=0

• 2x^2-2=0

• 2x^2 + 2=0

• 2x^2 -1=0