Using four zeros to find a polynomial function - Online tutor

The video tutorial explains how to find the zeros of a polynomial function and convert them into linear factors. It reviews the process of finding zeros, demonstrates writing them as linear factors, and explains the difference of two squares. The tutorial also covers using the FOIL method for polynomial expansion and concludes with the final polynomial form and its zeros.

What is the zero of the function f(x) = x^2 + 6x + 9?

• -3

• 3

• 6

• 0

How do you express a zero of -3 as a linear factor?

• x - 4

• x + 3

• x - 3

• x + 4

Which of the following is a correct representation of the difference of squares?

• x^2 + 6x + 9

• x^2 - 6x + 9

• x^2 + 9

• x^2 - 9

What is the result of expanding (x - 3)(x + 3)?

• x^2 - 9

• x^2 + 9

• x^2 - 6x + 9

• x^2 + 6x + 9

In the polynomial x^4 - 4x^3 - 9x^2 - 36x, what is the coefficient of x^3?

• 9

• -4

• 4

• -9