How to find the zeros of a polynomial using the sum of two cubes

How to find the zeros of a polynomial using the sum of two cubes

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial covers the process of factoring expressions, starting with identifying the greatest common factor (GCF) and using the sum of cubes formula. It then moves on to simplifying the factored form and solving equations using the zero product property. The tutorial also explains how to handle non-factorable equations using the quadratic formula and discusses complex solutions, emphasizing the difference between real and complex solutions in terms of x-intercepts.

Read more

7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in factoring a polynomial that is a sum or difference of cubes?

Factor out the greatest common factor

Apply the quadratic formula

Set the equation to zero

Identify the cube roots

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When factoring a sum of cubes, what is the formula used to express the polynomial in its factored form?

a^3 + b^3 = (a - b)(a^2 + ab + b^2)

a^3 - b^3 = (a + b)(a^2 - ab + b^2)

a^3 + b^3 = (a + b)(a^2 - ab + b^2)

a^3 - b^3 = (a - b)(a^2 + ab + b^2)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What property is used to solve a polynomial equation once it is factored?

Commutative Property

Associative Property

Zero Product Property

Distributive Property

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method can be used to solve a non-factorable quadratic equation?

Long division

Synthetic division

Graphing

Completing the square

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many solutions does a cubic polynomial have based on its degree?

Four

Three

Two

One

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why can't complex solutions be graphed on the real number axis?

They are too large

They require a logarithmic scale

They are undefined

They need an imaginary axis

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between real solutions and x-intercepts of a polynomial?

Complex solutions are x-intercepts

Only real solutions are x-intercepts

All solutions are x-intercepts

There is no relationship