Understanding Algebraic Expressions

The video tutorial explains how to determine the value of the expression 'cube of x minus y' using the equation y = x - 5. It involves algebraic manipulation to solve for x - y, which is found to be 5. The tutorial then demonstrates how to evaluate the cube of this value, resulting in 125.

What is the initial equation given in the problem?

• y = x * 5

• y = x / 5

• y = x + 5

• y = x - 5

What operation is performed first to solve for x - y?

• Subtract y from both sides

• Multiply both sides by 5

• Divide both sides by 5

• Add y to both sides

After simplifying the equation, what is the value of x - y?

• 10

• 5

• 0

• 15

What is the cube of x - y?

• 150

• 125

• 100

• 25

How is the cube of a number calculated?

• By dividing the number by itself

• By subtracting the number three times

• By multiplying the number by itself twice

• By adding the number three times