Factoring by using a sum of cubes - Online tutor

The video tutorial explains how to factor a sum of cubes using a specific formula. It begins with an introduction to the problem, followed by an explanation of the abstract formula used for factoring. The teacher then demonstrates the factoring process, including identifying terms that can be rewritten as cubes. Finally, the formula is applied to solve the problem, resulting in a factored expression.

What is the initial expression given in the problem statement?

• 343 + X^3

• 343X + X^3

• 343X + X^4

• 343 + X^4

What is the first step in using the sum of cubes formula?

• Rewrite the expression

• Factor out the greatest power factor

• Identify U and V values

• Check the calculator

What is the value of U in the sum of cubes formula for this problem?

• 343

• X^3

• 7

• X

What is the value of V in the sum of cubes formula for this problem?

• 343

• 7

• X

• X^4

What is the final factored form of the expression using the sum of cubes?

• (7 + X)(49 + 7X + X^2)

• (7 + X)(49 - 7X + X^2)

• (7 - X)(49 - 7X + X^2)

• (7 - X)(49 + 7X + X^2)