Learn how to solve a polynomial using the difference of two cubes and quadratic formula

Learn how to solve a polynomial using the difference of two cubes and quadratic formula

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial covers the concepts of factoring the difference of cubes, specifically a^3 - b^3, and solving equations using the zero product property and the quadratic formula. It begins with an introduction to cubes, followed by a detailed explanation of factoring a^3 - b^3. The tutorial then demonstrates solving the equation using the factored form and applying the zero product property. Finally, it explores the use of the quadratic formula to find solutions, including complex numbers.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the general formula for factoring the difference of two cubes?

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)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you determine the value of B in the expression a^3 - b^3?

By taking the square root of b^3

By taking the cube root of b^3

By dividing b^3 by 3

By multiplying b^3 by 3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the next step after factoring the expression a^3 - b^3?

Divide the terms by a constant

Multiply the terms by a constant

Add the terms together

Solve the equation using the Zero Product Property

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What property is used to solve the equation when the product of two factors is set to zero?

Zero Product Property

Associative Property

Distributive Property

Commutative Property

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What method can be used to solve a quadratic equation if it cannot be factored?

Graphing

Completing the square

Using the quadratic formula

Both completing the square and using the quadratic formula

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the nature of the solutions when the discriminant of a quadratic equation is negative?

Two real solutions

No solution

One real solution

Two complex solutions

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many total solutions are there for a cubic equation with a power of 3?

Four

One

Two

Three