Understanding zeroes and factors of polynomials

Identify the SOLUTIONS to

2x(x - 4)(-x - 2) = 0

• x = {2,4}

• x = {2,0,4}

• x= {-2,0,4}

• x = {0,2,4}

Solve by factoring:  2x³+ 7x² + 6x = 0

• x=0, x= 3/2 and x = 2
• x=0, x = -3/2 and x = -2
• x=0, x = 6 and x = 7
• x=2, x = -6 and x = -7

Which of the following can be used to say where a function "crosses through the x-axis?"

• Zeros

• X-Intercepts

• Roots

• All of the Choices

What is another name for the x-intercepts of a quadratic?

• y-intercepts
• zeros
• x-axis
• none of these

Answer explanation

5. What is another way to say "where a function crosses the x-axis"?

• x-intercept

• Zeros

• Root

• All the above.

What are other names for the solutions to quadratic equations?

Select ALL that apply.

• x-intercepts

• y-intercepts

• roots

• zeros

List the roots:

• x=-4, x=-4, x=2, x=5
• x=4, x=4, x=4, x=-2, x=-5
• x=-4, x=-4, x=-4, x=2, x=5
• x=-4, x=2, x=5

What are the roots and degree of the factored polynomial function?

f(x) = (x + 2)(x - 7)³

• -2 (multiplicity of 1), 7 (multiplicity of 3), degree 3

• 2 (multiplicity of 1), -7 (multiplicity of 3), degree 3

• -2 (multiplicity of 1), 7 (multiplicity of 3), degree 4

• 2 (multiplicity of 1), -7 (multiplicity of 3), degree 4