MOCK UP BRAINQUEST

Which of the following equations is NOT a quadratic equation?

• 2x² + 2 = 0

• x² + 4x = -4

• 64 = x²

• x² - 2x + 1

It is a polynomial equation of degree two that can be written in the form

ax² + bx + c = 0, where a, b, and c are real numbers and a ≠ 0.

• Linear Equation

• Linear Inequality

• Quadratic Equation

• Quadratic Inequality

In the quadratic equation 2x² – 9x – 5 = 0, which is the quadratic term?

• 2x²

• x²

• – 9x

• – 5

Solve by extracting the roots:

4m² = 100

• m=25, -25

• m=96

• m=-96

• m=5, -5

Solve by extracting the roots:

3x² = 192

• -32 or 32

• -8 or 8

• -64 or 64

• No Solution

Find the solutions of the equation x² - 16 = 0 by extracting the square root.

• x = 4 and x = -4

• x = 4

• x = -4

• no answer

Find the roots of the quadratic equation 2s² = 50.

• s = 25 and s = -25

• s = 5 and s = -5

• s = 5 and s = 25

• s = -5 and s= -25

What equation has the roots of x = 7 and x = -7?

• x² - 14 = 0

• x² - 49 = 0

• x² + 49 = 0

• x² = 14

What are the roots of the quadratic equation 3t² = 12?

• t =4 and t = -4

• t = 2 and t = -2

• t = 3 and t = -3

• t = 9 and t = -9

What is the solution of the equation a² – 60 = 21?

• positive or negative 4

• positive or negative 6

• positive or negative 7

• positive or negative 9