Step-2

Title: Solve the cubic variable value of the expressions

Grade: 7-a Lesson: S4-L3

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step Type Explanation Answer

1

Problem

Determine the value of an expression \$ x= 2 , y = 1/3 \$:
\$ x^3 - y^3 \$

2

Hint

Substitute x,y value in the expression

\$ 2^3 - (1/3)^3 \$

3

Step

After simplification

\$ 8 - 1/27 \$

4

Step

Taking 27 as LCM

\$ (216-1)/27\$

5

Step

After simplification

\$ 215/27\$

6

Answer

D

Tutor: Questions

Seq Type Question Audio

1

Problem

What did you learn from this problem?

2

Clue

What did you learn from the clues?

3

Hint

What did you learn from the Hints?

4

Step

What did you learn from the Steps?

5

Step

How can we improve the Steps?


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