MX1 Reviewer MATJ090

Choose the best answer.

Which of the equations is the standard form of the quadratic equation

3(2x + 7) = - 5x²?

              

• 0 = -5x² - 6x - 21

• -5x² + 6x + 21 = 0

• 5x² + 6x + 21 = 0

• 5x² - 6x - 21 = 0

Given the values of a, b, and c, write the equation in standard form.

a = 9  ;     b = 4  ;  c = -8

• 9x² + 4x + 8 = 0

• 9x² + 4x = - 8

• 9x² + 4x - 8 = 8

• 9x² + 4x - 8 = 0

It is known as the highest exponent.

• term

• degree

• coefficient

• linear

Which of the following is not a quadratic equation?

What are the roots of 3a² = 12?

Which of the following quadratic equations will have a value of c = 0 when it is written in standard form?

• x(2x + 3) = 4

• 8x = 16

• 10x - 1 = 2x²

• 4x = x²

True or False.

x² - 4x + 4 is a quadratic equation.

• True

• False

What are the roots of the quadratic equation   

0 = x² - 10x + 25?

• -2 and -5

• 2 and 5

• -5 and -5

• 5 and 5

Solve x² = 225.

In the quadratic equation -6 + 5x² - 4x = 0, what is the linear term?

• -6

• 5x²

• -4x